Spec-D Tuning EJ-HHD1000 Spec-D Electric Tongue Jack-3500Lb Lift Adjustable electric tongue jack Length:30 in. Width:9.5 in. Height:7.5 in. set of fully electric tongue jack, durable black powder coat finish resists rusting By using materials endorsed and made by approved & certified manufactures fitment is guaranteed. Fits all 12-volt trailer with 3-bolt mounting into standard a-frame with 2 1/4" hole