ITEM NAME:Joints sealing rubber rings 19 Types of watch repair E1Q4 Joints sealing rubber rings 19 Types of watch repair E1Q4 New product of high quality 12 specifications different total The necessary accessories for repairing the clock Color: black Material: Rubber Standard: 0.5 mm wire diameter Diameter of the ring (models 19, each model includes about 50 pieces): 12mm / 13mm / 14mm / 15mm / 16mm / 17mm / 18mm / 19mm / 20mm / 21mm / 22mm / 23mm / 24mm / 25mm / 26mm / 27mm / 28mm / 29mm / 30mm Package include: 1 x set gasket Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.