Placed on the ground between tires, it locks wheels by applying force to both tires. Aids in trailer stabilizing and stops tire shifts. Extends from 15-1/4" to 23-1/8". Lightweight; easy to store. Rust-inhibiting coating for long life. Additional pressure can be applied by using the included tension bar.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov