High-Quality Material: The plugs are suitable for tubes with a wall thickness of 0.5 mm to 2 mm. The size indicated on this product is equal to the outer diameter of the tube. The plastic plug is made of high-quality plastic, which can prevent damage to objects. It does not easily deform or break, is non-slip, wear-resistant, and has good flexibility. Advantages: The unique design of the tube plug ensures furniture stability and prevents water and dust from entering the tube, keeping it clean and preventing noise from the furniture. Multi-Layer Design: The end cap tubes are made with 4 layers to increase the durability of the plugs and extend the lifespan of furniture or machinery. Protection and Noise Reduction: The square tube plugs protect carpets and floors from furniture, steel abrasion, and scratches, and effectively reduce noise when objects are moved. They also easily decorate furniture and improve its appearance. Applications: Chairs, furniture, end caps for round tubes. Also suitable for angled chair legs. However, the angle of inclination should not exceed 25 degrees.