4Pcs parking auxiliary balance pads, help stabilise RV on soft ground and prevent sag. Permanent attachment for easy parking and to save time. Easy to use, metal fixing pin design, anti-slip grooves inside to prevent displacement. Made of high quality metal and plastic materials, wear-resistant and . Widely used in recreational vehicles, recreational vehicles, campers, boats, etc. Colour:Black Material:Metal+Plastic Size:14x17.8CM Package Contents: 4 * Universal Caravan Jack Pads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.