Capacity: max. 550 lbs (250 kg) per ramp;<br> 1100 lbs (500 kg) per pair ,<br> Open size: 70,87 x 5,91 x 8,86 x 1,77" (180 x 22,5 x 4,5 cm) , <br>Foldable: Yes 70,87 x 5,91 x 8,86 x 1,77" (180 x 22,5 x 4,5 cm) 180.00 centimetres<br>