Double block. Small size with Derlin sheave used mainly on small boats. The cheeks and the sheave are in delrin®, the metal parts in AISI 316.

Single block features:
Sheave diameter: 34 mm.
Maximum sheet diameter: 8 mm.
Overall height: 66 mm.
Weight: 38 gr.
Breaking load: 800 kg.
Working load: 300 kg.