Schaefer Stand-Up Swivel Alum Ronstan Series 500 Snap Shackles Overall Length Y (in) -

Overall Length Y (in) - 18 7/8

Ronstan Ring 8mm x 42

Mounts 20 7/8" (530mm) high on a stachion

Weight - 295

Double Sheave Control Block

Schaefer Stand-Up Swivel Alum Ronstan Series 500 Snap Shackles Overall Length Y (in) -Product Description Schaefer Stand Up Swivel. Alum. Stand Up Spring Block swivels 360' and uses a Delrin(tm) Sheave. Large Diameter Base distributes loads. Delrin(tm) Base included. Boats to 34'. Specifications: Sheave Dia.: 2 3 8 in. (60 mm) Max Line: 1 2 in. (13 mm) Dia includes urethane base: 3 3 8 in. (86 mm) Height: 4 25 32 in. (120 mm) SWL: 2250 lbs. (1020 kg) H2: 2 15 32 in. (63 mm) Weight Alum: 11. 7 oz. (332 g) Fastener Size: (4) 1 4 in. RH