Ready-To-Use Design: HPWFHPLF pre-slit tennis balls are ready for immediate installation. No more struggling to cut a standard tennis ball yourself; just slide them onto walker legs or furniture feet for instant floor protection. Dual-Surface Protection: The soft felt exterior is designed to be gentle on hardwood, laminate, tile, and vinyl floors, while the durable rubber interior helps protect your floors from scratches, scuffs, and dents. Smooth & Quiet Movement: Designed to provide a smooth gliding motion on carpets and hard surfaces. This can help reduce the scraping noise often associated with metal walker legs and furniture. Secure Non-Slip Fit: The high-quality rubber construction is intended to grip the leg of your walker or furniture securely, helping to keep the glide in place during use. The pre-cut slit is designed for a snug fit. Heavy duty and Long-Lasting: Crafted from high-quality materials, these precut tennis balls are built to withstand everyday wear and tear. They provide long-lasting protection for your floors, ensuring reliable performance over time. 2.2 Inches cross cut can fit most of the walkers and Furniture Legs.