Sprenger: Pivoting deviation pulley, for maximum ropes 8mm. Ball necks .-- Pivoting deviation pulley, for maximum ropes 8mm. 27 x 8 mm. Ball metal. 45 gram weight. Very good value for money. Micro XS TilTable Block Ball Bearing 8 mm - 1 sheave Suitable for: - 420-445 - 470 - 485- 490 - 505- Cadet - CONTENDER- Europe - FLYING DUTCHMAN - Finn - FIREBALL- KRALLE - KORSAR- LASER - LIGHTNING- MARAUDEUR - MOTH - OPEN 5.00 - OPEN 5.70- OPIRIST - - Ponant - Topper - Vaurien - Windy