The two curved cradle arms attach to truck frame in seconds with minimal effort. No tools are required. Its curved design and special Stevens footplate extension support the round fronts of the new vending machines safely and keep the rounded front from touching the back of the footplate. Specifications Weight: 26 lbs. Model Features, VA-8 fits Stevens Model SRT M 60, SRT M 66, and SRT M 72 with 8" wheels