TIPS: Your bearings may be a little hard to press into your wheel but 608 bearings will fit. If your wheels are flickering when rolling, please tighten the nut a little more to add extra pressure between the led spacer and bearing. These wheels come in a pack of 4. For roller skates you will need 2 packs (8 wheels). Bearings are not included. This roller skate wheel comes in glitter pearl pastel colors; Angelic Aqua, Chameleon Green, Love letter pink, and Obsidian Black. But in the dark, they have a luminous neon glow. The 62mm x 35mm Glow LED roller skate wheel has a hardness of 83A. A great hybrid indoor/ outdoor wheel that works well on the sidewalks or skating rinks. Perfect for an evening skate or show them off at the rink. The Bont Glow LED roller skate wheel is a hybrid indoor/outdoor wheel that uses LED lights that illuminate the tire as you cruise around. No batteries are required as the magnetic floating spacer powers the wheel's core to light up when they spin.