The Front-Pin Heavy Duty Square Jack from Buyers Products features a spring-return drop leg that allows easier expanding and retracting. The spring return is activated by pulling a sturdy front-mounted pin to drop the leg. The Square Jack is often used in pairs， connected to each other， for the heaviest duty lifting. Ideal for RVs， construction trailers and tri-axial trailers， the jack has a 10，000 lb. (dynamic) and 12，000 lb. (static) capacity. The 4 in. square tube features a weather-resistant black powder-coated finish， and includes a footpad.

Easy retraction and expansion with the spring return mechanism

Strong， durable 4 in. square construction will handle up to 10，000 lb. (dynamic) and 12，000 lb. (static)

Use in pairs for even heavier-duty applications

Corrosion-resistant black powder-coated finish