Libra Jack Drop Leg Foot Pad for 2" Standard Trailer Camper Jacks -26026 1-3/4" tube dia, insert to standard 2" trailer camper jack, give your jack extra height! Foot pad dia.:5-1/4", Overall height 12-1/4" 2" intervals between 4-16" holes Zinc plated, can be used on boat trailers Lock pin included