Hyperion 25-Class fiberglass SPATS (wheel pants). Made of beautifully-formed light fiberglass with white gelcoat. Use as replacements, or to fit almost any model in the .15 to .35 (15e - 35e) class, or for your own hand-built models. Weight each: 9.5g, Length: 140mm, Height: 40mm. Fits wheels up to 50mm (2") in diamter and up to 13.2mm wide (3/4").