Sprenger: Pulley for ropes from 6 to 10mm. With disengageable flasks, turning on 360 ° .-- Pulley for ropes from 6 to 10mm. With open clips, turning on 360 °. Stainless steel balls. Suitable for: - 420-445 - 470 - 485- 490 - 505- CONTENDER- FLYING DUTCHMAN - Finn - Fireball- Korale - Korsar- Lightning- Marauder - Open 5.00 - Open 5.70- Pirat -Ponant - Topper - Vaurien - Windy