MonkeyJack 2 Pieces 80mm LED Light up Inline Skates Wheels Replacement Wheels for Roller Skates - Green

Description: - Replacement Wheels for Inline Skates, roller skates. - Led inside the wheels with self-generating power. No battery needed. (When the wheel moves, it automatic light up.) - LED light beads, light up when the wheel moves, coil is made of pure copper, Cutting the mag-netic induction line power generation, electrical energy into light energy, safety and environmental protection. - High quality and improved PU material, durable for outdoor uses. - 80mm diameter wheels, universal use. - LED Light Flash, very cool, your are the focus. Specification: - Wheel Material: PU - Mag-netic Core Material: Copper - Wheel Diameter: 80mm - Wheel Inner Diameter: approx. 22mm - Wheel Thickness: approx. 23mm - Hardness: 85A - Mag-netic Core Diameter: approx. 18mm - Mag-netic Core Inner Diameter: approx. 9mm Package Includes: 2 Pieces Roller Skate Wheels (Bearings not included)2 Pieces Mag-netic Core Note: Color maybe slightly different due to different monitor.The above size is measured by hand, please allow slightly difference. Thanks!