Product Features and Specifications:

• Camco's Trailer-Aid wheel chocks keep your trailer in place so you can re-hitch with confidence
• It is solidly constructed of durable hard plastic with UV inhibitors
• Meets SAE J348 for tires up to 26"
• To use, place on flat ground and push firmly under tire(s). Chock all tires on vehicle, both in front of the tire and behind.
• Length: 8"
• Width: 5"
• Height: 4"

Note: Not recommended for commercial use or with heavy commercial-type trucks or trailers.