Track Size: 25 mm x 3.2 mm (1 in x 1 1/8 in)
Sheave Dia: 27 mm & 44 mm (1 1/16 in & 1 3/4 in)
Max Line: 16 mm (5/16 in)
Length: 73 mm (3 in)
Width: 32 mm (1 1/4 in)
Height: 83 mm (3 9/32 in)
Bearing Height: 48 mm (1 29/32 in)
Safe Working Load: 225 kg (500 lb)
Weight: 0.45 g (15.5 oz)

Use with:
Control Block fits on 1 in T-Track.

Fits boats:
Boat Size 33' 1200 lb displacement and 520 sq ft sail area.

Our Part # SCH7441 | Schaefer Part # 74-41