Luminous is a perfect combination between the latest LED technology and a top quality, high performance polyurethane. With Luminous wheels, skating at night is more fun and safer for everyone. Thanks to the high visibility, people can spot you from far away and look at you with a huge smile on their face watching the bright colors under your feet as you skate Comes with Magnetic Spacer Width 30mm 62mm/85A 4 pack Color Galaxy Pattern Galaxy Brand Name Luminous Wheels Wheel Size 62 Millimeters Wheel Type Quad Item Weight 0.38 Kilograms Closure Type Lace-Up Manufacturer Luminous Wheels Material Type Polyurethane Sole Material Polyurethane Wheel Material Polyurethane Manufacturer Part Number LUM-FBM-6285-GALAXY-4PK