PLEASE NOTE: DUE TO SIGNIFICANT SEASONAL DEMAND, ORDER FULFILMENT AND CUSTOMER SERVICE RESPONSE TIMES ARE LONGER THAN NORMAL.

FOR URGENT ORDERS OR CUSTOMER SERVICE REQUESTS, PLEASE EMAIL US WITH THE SUBJECT LINE MARKED "URGENT".

Harken Small Boat 57mm & 75mm Flip-Flop Blocks

Small Boat Flip-Flop blocks pivot around the line axis to keep line close to the deck. Hinged construction allows for various lead angles.

Lightweight, machined 6061-T6 aluminum cheeks pivot on fiber-reinforced plastic chocks. Sheave runs exclusively on a ball bearing system for fast trim and release under any load. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

Ratchamatic® versions roll freely in both directions under low loads and automatically engage a ratchet mechanism as loads increase, giving sailors a holding power of up to 15:1. The ratchet engagement can be adjusted to a higher or lower load depending on the sailor’s strength, sailing style and system usage.

Reversible cam arms adjust and lock in a wide range of positions for crew accessibility and accommodation of changing lead angles.