[High-quality material]-Made of high quality material, designed to provide good grip and speed under hardness conditions, and has excellent durability. [Diameter]-equipped with ABEC 9 bearings and gaskets, bearing inner diameter is 8 mm, bearing outer diameter is 22 mm. [82A hardness, outdoor performance] - 82A hardness, provides grip and soft balance, these wheels are soft enough, you not feel every collision, but as smooth as other hybrid wheels, very suitable for hard or rough outdoor Skating on the . [] - These softer wheels are more suitable for outdoor, because they have more "giving", allowing you to bounce or sticks, cracks and rocks. It is also a decent choice for beginners on smooth/hard surfaces, as the soft wheels make skaters quite slow and stable.<br><br>colour:Jelly green Material:PU size:58 x 32mm<br><br>Package Contents: 8 x Roller skate wheel(Bearings include) 1 x Mounting wrench<br><br>Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.