One size fits ALL slide out rooms! With a static load capacity of 5,000 pounds, these new universal slide winder supports protects your slide out room when extended for prolonged periods. One unit can adjust from 19" to 47" above ground! Features extra-long "easy turn" handles and heavy-duty steel construction that is powder-coated and zinc plated to resist corrosion. Easy to use, just insert handles and attach caps €“ no other assembly required. Includes a full 2-year manufacturer's warranty. Includes 2 (two) Slide Winders per box.