MAX 10mm MAX roping pulley. Stainless steel balls. Normal workload +- 212 kg rupture +- 850 kgcon comes for:- 420-445- 470- 485- 490- 505- Cadet- Europe- Flying Dutchman- Finn- Fireball- Koralle- Korsar- Laser- Lightning- Marauder - Moth - Open 5.00 - Open 5.70- Optimist - Pirat -Ponant - Topper - Vaurien - Windy Ball Bearing Block 10 mm - 1 Sheave, Bow Item Number: 3525060100