Ronstan Orbit double block 040. Series 40.
Used to create a 4:1 mainsheet on an Optimist
Ultra Lightweight
Low friction 2-stage Orbital ball bearing system
Low profile and compact
Ronstan Orbit Double block. Series 40
Ronstan Orbit double block 040. Series 40.
Used to create a 4:1 mainsheet on an Optimist
Ultra Lightweight
Low friction 2-stage Orbital ball bearing system
Low profile and compact