The Uniquely designed OziBlockNChock Leg Pad fits under your caravan legs to ensure they do not sink into soft ground. TIP – Pour Ant Sand or baby powder into groves to ensure ants do not raid your caravan. Sand can then be poured back it bag and reused (provided it is dry). This stops contamination of chemicals in the ground. Your kit comes with 4 Leg Pads. Bottom of pad is smooth so it does not sink into the ground. Pads interlock together for easy storage and a built in handle make them easy to carry.