Sturdy Metal Material: It's made of metal with rich dark brown color and smooth satin finish for long-lasting use. Extra Balance Stability: Purchasing a pair of sturdy support feet can provide extra stability and prevent tipping, keeping your freestanding dog gate stable even if your pet is hit. Allows the pet door to extend to its maximum width and keep it from falling over when fully extended. Anti-slip Pads: The rubber pads at the bottom prevents the pet gate from sliding and scratching the floor. The non-slip pads between the card slots increase the adsorption and friction between the support feet and the pet door, making the pet door stand stably. Easy to Use: There is a notch that fits perfectly in the dog gate. It slides easily into the base of folding pet gate and can be quickly removed when not needed. Note: The data are manual measurement, please allow a 1-3cm error, due to the differences between the light and the display, there will be a certain color difference, the specific received in kind prevail.