In Stock Clockmaking Press to close backgrounds and crystals with 24 tases 02869 €42.84 Valid for normal glass closure and with tension ring. Includes 24 nylon studs: 10 reversible nylon studs with a diameter of 21 to 60 mm. 8 flat nylon studs with a diameter of 24 to 52 mm. 6 rectangular nylon cups with a diameter of 16 to 30 mm. Add to cart