1. Size: 21.5 x 12.5 x 5.5cm 2. Net weight: 0.68kg 3. Material: high carbon steel, spring steel 4. Thimble diameter: 2.5 / 3/4 / 5mm 5. Surface treatment: Phosphating 6. Timing chain remover, suitable for bicycles and motorcycles when the chain is broken or loose. Tools can be used for adjustment and maintenance work.