1. Weight: about 132g/box 2. Outer box size: 21x11x3.3 cm/box 3. Shape: O-ring 4. Scope of application: automobiles, machinery, decoration, electrical appliances, cylinders, bearings, water pipes, valves, doors and windows, etc. 5. Properties: high temperature resistance, wear resistance, corrosion resistance, no pollution, no radiation, no peculiar smell 6. Purpose: Seals for holes, oil seals, dustproof seals, fixed seals, shaft seals, etc. 7. Material: rubber 8. Total: 225 pieces/box 9. Specifications (inner diameter x thickness): 3x1mm (20 pieces), 4x1mm (20 pieces), 4.5x2mm (20 pieces), 5x2mm (20 pieces), 6x2mm (20 pieces), 6x2.5mm (20 pieces), 6x3mm (20 pieces), 7x2mm (20 pieces), 8x2mm (20 pieces), 13x3mm (5 pieces), 14x1.5mm (5 pieces), 17x2.5mm (5 pieces), 18x4mm (5 pieces), 20x2mm (5 pieces), 22x2mm (5 pieces), 9x2mm (5 pieces), 10x2mm (5 pieces), 12x3mm (5 pieces)
