Made of durable, flexible PVC, stand-up boots holdblocks up without snagging lines. Fits 40 mm and 57 mm Carbo and Black Magic® blocks.

A (mm)
51 mm

A (in)
2 in

B (mm)
40 mm

B (in)
1 9/16 in

Weight (g)
21.7 g

Weight (oz)
.45 oz