This is a pair of Replacement 6x30 to 12mm Narrow & Wide Hex Adapters. Do you need replacement plastic 6x30 to 12mm Hex Adapters for your Raid 6x30 Removable Hex Wheels? You came to the right place! This pack contains a pair of Narrow 12mm Hexes (2wd Stampede/Rustler Rear) and a pair of Wide 12mm Hexes (2wd Stampede/Rustler Front and 4x4 Stampede/Rustler Front and Rear) for your 6x30 2.8" wheels. These hexes are made from High-strength, Durable DuPont Black Nylon Material and are built to take a beating.