?Main Features:<br />Made of high carbon steel、 with better hardness and resistance to wear<br />Double dust covers design、 effectively isolating the bearing from dust<br />Deep groove structure and high speed property<br />Outer diameter: 22mm<br />Inner diameter: 8mm<br />Bearing thickness: 7mm<br />Suitable for skateboard、 roller skating and other toys<br /><br />Note: <br />1. With solid butter on the bearing、 the speed may not very fast for the first time、 it will be well after the butter spreads<br />2. Do not use it in damp places in case of the bearing¨ s rust<br />3. You¨d better wear gloves when use it、 so that it won¨t be stained by the sweat<br />4. Avoid strongly striking、 it may be hurt<br />5. The green color you see in picture is caused by oil reflection、 the product itself is silver<br /><br /><br /><br /><br /><br /><br /><br /><br />    Specifications<br />General<br />	 Color: Silver                                                	<br />Basic Information<br />	 Product Weight: 0.089 kg                                                  <br />                        Package Weight: 0.145 kg                                                  <br />                        Package Size: 10 x 5.2 x 1.2 cm / 3.93 x 2.04 x 0.47 inches                                                	<br />Package<br />	 Package Content: 8 x 608 ZZ Skateboard Bearings Set                                                	<br /><br /><br /><br />                                                <br />