BAL Lock-Arm Stabilizing Bar

Adds support from the jack leg or foot to the trailer???s frame. Unique swivel mount adapts to most crank-down trailer jacks and works at various jack angles. Uses 3/4" crank handle (not included) to lock and unlock Lock-Arm. Simple one-time, bolt-on application. Two lock-arms and complete mounting hardware included. Mfr. lifetime warranty.Internet & Catalog Exclusive!