Ronstan Series 30 BB Stand-up Orbit Block - Swivel Head Degreaser It's made of silicone so

It's made of silicone so it's safe to use on every surface

Osculati fork base for Osculati gas spring

with a light blocking cone

Turns stubborn adhesive grime into a no-problem cleanup

It gives a good protection against water

Ronstan Series 30 BB Stand-up Orbit Block - Swivel Head Degreaser It's made of silicone soRonstan Series 30 Ball Bearing Stand up Orbit Block, Swivel Head RF35140 Lightweight Highest working load in its class Secure, versatile and secure attachment Low profile and compact Applications Mainsheet systems and spinnaker sheets on dinghies to 5m (16ft) Halyard, vang and backstay applications on boats to 5m (16ft) Control line applications on larger yachts Materials Sheave: High compression strength carbon black Acetal Ball Bearings: High