One size and model fits all slide out rooms and keeps them "on the level" regardless of how long your RV is parked. Fits slide out tubes up to 4-1/4 in. wide and is capable of extending from 19 to 47 in. It stabilizes all slide out rooms regardless of their height.
Features- Heavy-duty steel construction.
- Powder-coated and zinc plated to resist corrosion.
- Static load capacity 5,000 lbs.
- Extra-long "easy turn" handles.
- No assembly required.