Ronstan Utility Block, Series 25 & 30 Narrow - Single, Tube Rivet ronstan ratchet orbit block series 40 - cheek clockwise rotation measure drive shaft size across

measure drive shaft size across x down

complete with blue reinforced star pattern heads in the classic European style

350 Mag MPI & MX 6

Available in various sizes to suit your needs

OEM quality replacement water pump impeller to suit Mercury/Mariner® branded marine engine

Ronstan Utility Block, Series 25 & 30 Narrow - Single, Tube Rivet ronstan ratchet orbit block series 40 - cheek clockwise rotation measure drive shaft size acrossStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance Features: Lightweight durable construction Economical Maintenance free Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase. Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on larger yachts Materials: U. V. stabilised Acetal sheaves Grade 316 stainless