【Easy To Use】 Our high quality tennis balls fit most walkers and are pre-cut to make installation easier and safer. Just slip them on and go. 【Universal Fit for Walkers】 2 inch cross cut to fit most walkers. 【Prefect For】 Heavy Duty Thickness/Chairs, Desks, Stools, Tables, Walkers. 【Protection】The soft felt exterior is quiet and perfect to help protect floors. 【Package Include】2PCS Precut Walker Tennis Balls. 【Package Include】:4PCS Precut Walker Tennis Balls.