Ronstan RF51100 AP Single Block

The Ronstan RF51100 is an all-purpose (AP) single block built for sheets, halyards, and control line applications in both cruising and racing. Self-lubricating Acetal polymer sheaves run on polished stainless steel races for low friction and long service life. The Captive Lock™ universal head can be fixed in either of two planes or left free to swivel as required.

• Captive Lock™ universal head — fixed in two planes or free to swivel
• Self-lubricating Acetal polymer sheave for low friction and durability
• Slotted pin shackle eliminates fouled lines
• Exceptionally high working loads, low maintenance, long service life