PLS Box of 12 x x Carastack Stacking Pads - Set Of 4 x Stacking Feet interlocking design. Each Section is 4.25cm high with a total height of 17cm. Use as necessary to level your caravan. Eliminates wooden blocks or bricks Large footprint 14cm x 17cm Colour: Black. Compatable with PO300 PLS Carafoot Jack pad - Set of 4. Also Sold in Singles PO303 Carastack Stacking Pads - Set Of 4