Quite simply, Ronstan Auto Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of Ronstan's patented sheave cross-hole geometry. The Series 40 delivers up to 14:1 holding power.
The Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins.
