Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head PVVENT3 They can be mounted alone

They can be mounted alone or inside most bow rollers and work in conjunction with your anchor roller to take tension off the windlass

Sheave: 60mm (2-3/8")

while the IPX6-rated water-resistant face panel and controls are made to resist sun

The unit will fully rotate about the swivel head to match your pulling angle

Marine Kettle Bulkhead or Square/Flat Rail Mount

Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head PVVENT3 They can be mounted aloneSeries 40 Ratchet Orbit Block Single Auto Swivel Shackle Head Automatic Ratchet With automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely great for rapid easing of the sheet and for gybing asymmetric spinnakers. Awesome Ratchet Block Holding Power Quite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated NC