Ronstan Series 50 AP Single Utility Block - Universal Head Polishing Compound Heavy duty strain relief prevents

Heavy duty strain relief prevents kinking at the faucet

Reefing and furling system on cruiser / racing yachts

genoa or traveler T-track

When tacking a primer or topcoat surface

Shur-lok attachments that quickly lock into any Shurhold handle include:

Ronstan Series 50 AP Single Utility Block - Universal Head Polishing Compound Heavy duty strain relief preventsRonstan Series 50 All Purpose Single Utility Block, Universal Head RF51100 Exceptionally high working loads Low maintenance, long service life Self lubricating Acetal polymer sheave ensures low friction and extreme durability Captive Lock universal head Slotted pin shackle eliminates fouled lines Applications Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10 m (33 ft) S60 on boats up to 12 m (40 ft) Materials Grade