Ultra-Fab 30 inch Scissor Jacks, Supports Up To 6500 lbs. Ultra scissor jacks give added stability to travel trailers, fifth wheels, horse and cargo trailers. Powder coat black finish resists rusting. Large 5 inch x 9 inch footpads combat sinking and tilting. Powder coated black finish resists rusting. 3 inch x 10 inch multi-hole mounting plates. Twin pack includes hand crank. 30-inch Scissor Jacks, Twin Pack with Crank Handle.