- Material: aluminum<br />- Collet type prop shaft adapters center themselves on a motor or gearbox prop  <br />shaft and hold securely as the collet squeezes the shaft<br />- Suitable for 3.17mm motor shaft<br />- 5 pieces per pack<br /><br />                                                                                                                                Dimensions: 1.02 in x 0.39 in x 0.39 in (2.6 cm x 1.0 cm x 1.0 cm)<br />Weight: 0.74 oz (21 g)<br /><br />