Multiple sizes available: Our round tube plugs are available in a variety of sizes to fit your specific needs. 16mm - 50mm. It is important to consider the size and wall thickness of the tube or leg when choosing the correct size for your application. Our round tube plugs are available in a variety of sizes to fit tubes with wall thicknesses between 0.5mm and 2mm.Durable material: The round tube stopper is actually made of high-quality plastic, which ensures that it is both durable and long-lasting. The smooth surface is free of burrs, which contributes to its aesthetic appeal and ensures that it does not scratch or damage the surface when it comes into contact. These tube covers are designed to protect chair legs and square tubes from wear and tear, as well as prevent the floor from being rubbed or damaged.Ease of use: The tube plug is incredibly easy to install, thanks to its multi-layer design that eliminates the need for installation tools. Without screws or wrenches, you can simply insert it into the tube and have it set up quickly and easily. This feature makes it a breeze to install, saving you valuable time and effort in the process.Multi-purpose: The plastic tube insert covers have a wide range of applications and can be used for chairs, tables, desks, shelves, cabinets, and more. They are also perfect for use as end caps for exercise equipment, post covers for gate railings and trailer frame ends, as well as other round tube leg types. With their versatility and compatibility with many different types of furniture and equipment.Lightweight and easy to use: Compared to metal tube plugs, plastic tube plugs offer a lightweight and easy-to-use alternative for protecting furniture legs and floors. With their minimal weight, they are easy to install and replace, requiring no special tools or expertise.