1. Material: steel 2. Purpose: polishing the sharp shaft of a table grinder 3. Features: sturdy and durable, easy to install, exquisite and small, easy to carry and use 4. One set contains: left sharp shaft, right sharp shaft, allen wrench 5. Size: about 8.8x1.5 cm/piece 6. Weight: about 67.5g/piece for the left sharp shaft (with slot), about 63g/piece for the right sharp shaft, 2.5mm hexagon wrench
