Series 60 Orbit Block, Single Light-Load, 2-3/8" Sheave Size, 1,710lb. SWL, 4.7oz. from RONSTAN
These exceptionally strong blocks feature the performance Orbit sheave with captive Acetal ball bearings for side thrust loads, eliminating the need for side retainer plates. The 75mm webbing block (RF79107) can be used where swivel head and shackle attachment is not required to achieve further weight savings. Sheave Size: 2-3/8" (60mm) or 3" (75mm). Line Diameter: Series 60: 1/2" (12mm), Series 75: 9/16" (14mm). Cheek Material/Finish: Anodized aluminum.

Series 60 Ratchet Block, Head Post Locking Kit from RONSTAN
Great for dinghy mainsheets on boats such as the Laser, 470 and 49er. Spinnaker sheets on dinghies, especially modern asymmetric classes, sportboat mainsheet systems, vang, traveller and control lines on larger boats. Pivoting lead blocks are great for sportboats and small keelboat spinnaker sheets and other control line applications on larger boats. One of the switches can be removed if desired. Ball Bearings: Carbon Black Acetal, Torlon® ratchet pawl . Sheave Size: 2-3/8" (60mm) .

Ratchet Orbit Block, Cheek, Counter-Clockwise, 550lb. SWL, 2.7oz. from RONSTAN
Practical Sailor's Ratchet Block Click-Off rated Ronstan's Orbit block "Overall, the most impressive with its grip, versatility, and lightweight design. It can be set at a 0 or 90 degree orientation, provides stress-free articulation without allowing the block to over-rotate, and is locked in place with a security clip that doesn’t require tools to fit. The Dyneema link is also more compatible with carbon, Dyneema and webbing connection points than steel loop tops or shackles.

300 Series Fairlead Block, Fixed Style, 2-7/32" x 3/4" from SCHAEFER
Same as the Schaefer 200 Series fairlead blocks, but with twice the working load. Use #10 fasteners. Configuration: Lead block. Sheave: UV-stabilized white Delrin®. Ball Bearings: Delrin. Sheave Size: 1-7/16" (37mm). Line Diameter: 7/16". Cheek Material/Finish: Polished stainless.

Series 40 Ratchet Block, Single/Cleat, 385lb. SWL, 3.4oz. from RONSTAN
Practical Sailor's Ratchet Block Click-Off rated Ronstan's Orbit block "Overall, the most impressive with its grip, versatility, and lightweight design. " The newest addition to Ronstan’s Orbit range of super lightweight, fiber-reinforced blocks. Ideal for sheet applications on dinghies up to 16' and control line applications for small keel boats. There are two styles of Series 40 ratchet blocks. Many of the top Grand Prix Laser sailors are switching to Orbit blocks.

Large Dinghy Snatch Block, 9/16" Line Dia., 40mm Sheave Dia., 1300 SWL from HOLT ALLEN
Glass-filled nylon cheeks with 316 stainless straps increase working efficiency more than 50% with minimal weight increase. Stainless ball bearings in a polypropylene cassette. For spinnaker sheet, jib sheet turning blocks, etc. Cheek Material/Finish: Glass filled nylon. Ball Bearing: Stainless ball bearings. Opening: Hinged cheek/axle.

All-Purpose Block, Single with Becket, Loop Head, 880lb. SWL, 2.2oz. from RONSTAN
Much stronger than other same-size blocks and much more compact than other blocks handling the same loads. “Smart” features include a unique captive lock universal head fitting and an adjustable cam arm. The ball bearing blocks feature Ronstan’s two-stage bearing system, which has exceptional low-friction performance and very high maximum working loads. For dinghies and keelboats to 26'. Bearings: Two-stage acetal ball bearing system or plain bearing. Sheave Size: 1-9/16" (40mm). ).

Midrange Hexaratchet Ratchet Block, Single, 1,800lb. SWL, 14oz. from HARKEN
Stronger versions of the Hexaratchet II+2 with 8:1 holding power. Beefier posts and wraparound straps handle higher working loads. Sheave: Teflon-impregnated Hardkote anodized aluminum. Bearings: Delrin. Sheave Size: 3" (76mm). Line Diameter: 9/16" max. Cheek Material/Finish: Plastic with wrap-around stainless straps. Shackle/Strap Type: Heavy-duty forged swivel with three-way head; locks or rotates. Cleat: 1556 and 1566: 280 Cam-Matic.

60mm Racing Fiddle Block with Becket & Cleat, 882lb. SWL, 12.4oz. from LEWMAR
For chafe-free, low-friction tackles. Sheave: Anodized aluminum alloy . Ball Bearings: Delrin® . Sheave Size: 2-3/8" (60mm) & 1-5/8" (40mm) . Line Dia. : 3/8" max. . Cheek Material/Finish: Anodized aluminum alloy . Shackle/Strap Type: Swivel with three-way locking, drilled-out head . Cleat: Model with cleat: adjustable arm, aluminum cam cleat .

29mm Carbo Clew Block Assembly from HARKEN
From the folks who invented ball bearing blocks, this line of blocks boasts an excellent strength-to-weight ratio. 29mm doubles and triples feature a U-lock to hold the swivel in the front or side position, or allow it to spin freely. Use the 40mm blocks for jib and mainsheet systems on high-performance dinghies, and for high-load control lines on small keelboats. The 57mm blocks have an enormous working range that makes them ideal for main and jib sheets, spinnaker halyards and control lines.

Delrin Sheave, 1/2" Max. Line Dia., 1-7/16" OD, 3/8" ID, 5/8" Width from SCHAEFER
Schaefer sheaves are designed to be compatible with Schaefer products, and are not intended for use in other manufacturer's blocks. Delrin sheaves are injection molded with UV inhibitors and monitored molding cycles for a stronger product.

5"L T20 Snap Shackle, 31/32" Opening, 31/32" Bail, 10,000lb. MWL from TYLASKA
S. -made shackles offer race-ready high performance, one-handed operation and they can be snapped open under load. Large bail size ideal for additional sheets, spinnakers and other multi-line applications. They have a breaking strength of 5,000 lbs and weigh just 2. 2 ounces in the standard bail configuration. Ideal for J-24s, Mumm 30s and similar boats. Tylaska T8 Snap Shackles are perfect for applications requiring high strength and low weight. 5 ounces in the standard bail configuration.

Deck Plate, 3-3/8"dia. x 1-15/16"H, 2,250lb. SWL from SCHAEFER
Swivel base for deck mounting blocks.

3/8" Bow/Stern Eye - 1.03" ID Between Studs x 4.63" Thread Length from SUNCOR
Bow / Stern Eye 304 Stainless Steel - Formed . Each U-Bolt set includes four nuts (two standard and two beveled) . Includes one bow plate, and one stern plate. . Threads are "UNC". . Stock size: 3/8" . ID between studs: 1. 03" . Thread length: 2. 50" .

RigTune Pro Digital Rig Tension Gauge from HARKEN
Old-fashioned spring gauges, like the Loos Pro, don’t provide repeatable numbers. This product does. Unlike spring-loaded gauges, the Harken Rigtune Pro measures rig tension to the nearest kilogram. A load cell records the pressure on one of the pins and the measurement is displayed on a simple, easy-to-read screen. The Rigtune Pro fits a specific range of rigging sizes, 2. As rigging is deflected over three pins on the back of the gauge, a load cell records the pressure on one of the pins.