Features:<br /> Surface: Wider contact surface with the ground, rolling all kinds of road surface, over the obstacle ability<br /> Noiseless: Adopt high speed rotary bearing, glide noiseless, smooth rotation speed and more durable<br /> Smooth Glide: Our magnetic core has a protective cover, which is not fragile but also allows the wheels to flash more and glide more smoothly<br /> Comfortable: Adopt polyurethane polymer material, anti-skid, wear-resistant, good compression resistance, four-wheel PU shock absorption, gliding more comfortable<br /> Application: Suitable for double-row roller skates and four-wheel skateboards<br /> <br /> Specification<br /> Material: PU<br /> Color: red<br /> Size(Dia x T): About 58 x 32mm/2.3 x 1.3inch<br /> Springback: 80%<br /> <br /> Package included:<br /> 16pcs x Bearings<br /> 8pcs x Magnetic Core<br /> 8pcs x Lighting Wheel<br /> 1pc x Wrench<br />