chockMaxi Urethane Chock
For fire trucks & all terrain vehicles that have up to a 44" dia. wheels. Same
construction but also has high strength aluminum base plates with posigrip
rubber cleats. 11.25"W x 21"L x 12.25"H Wt. 23 lbs. Complies with
NFPA 1901-1904 and meets SAE J348 standard Available in Yellow or  red,etc.