- Plastic material<br />- Can be precisely adapted to motor shaft diameter of 2/2.3/3/3.175mm<br />- Comes 5pcs per pack<br /><br />                                                                                                                                Dimensions: 4.09 in x 0.47 in x 0.28 in (10.4 cm x 1.2 cm x 0.7 cm)<br />Weight: 2.26 oz (64 g)<br /><br />