Go transparent and grippy with your next pro scooter wheels - The Plasma Starlight wheels by Proto If you ask the guys at Proto, they will swiftly tell you that this wheel design is something straight from outer space. The formula they have used to make these wicked transparent PU s stick to their cores is made with space-like and somewhat alien materials. The stickiest and most grippy wheel by Proto If you love riding Proto wheels but find them lacking in grip, then you should try the Plasmas The Plasma Wheels are made in California and come with Proto Murders bearings pre-installed The cores are made with the coveted Proto BUFF core tech that helps prevent dehubbing. Bearings and spacers: Included Wheel hardness: Not Specified Core design: Spoked Wheel diameter: 110mm Weight: 220g Wheels per pack: 2 Core material: Aluminum Wheel profile: Flat Bearing size: 608 Axle diameter: 8mm Wheel hub width: 24mm