A horse nonslip pad is a type of pad that can be placed under a horse's saddle to prevent it from slipping or sliding during riding. These pads are typically made of a grippy, rubber-like material that helps to keep the saddle in place and provide more stability for the rider. They are especially helpful for horses with sensitive skin or those who tend to sweat a lot during exercise. Nonslip pads come in various sizes and thickness levels to fit different saddle types and provide the desired level of grip.