This gives the user more control to make incremental adjustments to hand-held lines such as jib sheets, spinnaker sheets and mainsheets.Adjustable Cam Cleat - An A..76 cam cleat is mounted to an adjustable arm to allow easy adjustment of the cleating angle. Becket - This block features a removable becket, so spliced rope can be easily attached or removed. Anti-Snag - Included is an anti-snag elastic line which stops your line from getting caught between the cleat and block.Switchable - In the middle of the block is a switch that can be used, even under load, to turn the ratchet mechanism on or off. Giving you more control and feel of your control system. Extreme Hold - The Pro-Ratchet 60 features a hardwearing nylon sheave with eight V grips to give extreme holding power on all lines. For maximum performance, we recommend pairing this ratchet block with 7mm Excel Marstron Plus.