1 Box Mini Rubber Washer O-Ring 12 Sizes Watch Crown Seals Waterproof Rings Watch ket Black Round Ring Watch Repair Tools

Features:

1. Made of high quality rubber material, which is ble for long-term use.2. Great for repairing watches.3. ing your watch water resistant.4. Storage by categories enables you find the size easily and quickly.5. Compact and light weight design for easy to store and carry.Specification:Material: RubberColor: BlackRubber Shape: Round12 Size (Outer Diameter x Inner Diameter):1.4mm / 0.055inch (0.6 x 0.4)1.45mm / 0.057inch (0.65 x 0.4)1.5mm / 0.059inch (0.5 x 0.5)1.5mm / 0.059inch (0.6 x 0.45)1.6mm / 0.063inch (0.6 x 0.5)1.6mm / 0.063inch (0.6 x 0.7)1.7mm / 0.067inch (0.7 x 0.7)1.8mm / 0.071inch (0.8 x 0.5)1.9mm / 0.075inch (0.9 x 0.6)2.0mm / 0.079inch (1.0 x 0.5)2.4mm / 0.094inch (1.4 x 0.5)2.8mm / 0.11inch (1.8 x 0.5)