[MULTIFUNCTIONALITY] Square tube plugs help protect carpets and floors from wear and tear, prevent scratches on furniture and steel frames, reduce noise when moving objects, and can also be used to enhance the appearance of worn furniture. [GOOD MATERIAL] Made from high-quality PE plastic, these plugs are impact-resistant, moisture-resistant, strong, durable, and offer excellent stability. [EASY TO USE] After selecting the correct size, simply insert or push the plug into the hollow tube for a precise and secure fit. No tacks or nails required. These protective caps are more durable than adhesive models. Black square end caps made of high-strength polyamide, ideal for garden chairs, garden tables, furniture, steel pipes, and more. Ideal for box section projects, these caps protect tubular ends, prevent water and debris from entering tubes, and provide a safe, smooth finish. [WIDE APPLICATIONS] Suitable for use with metal products, chairs, sofas, tables, shelves, cabinets, guardrails, doors, machinery, and various types of furniture. Perfect for home, office, and industrial environments. Product Features: 1. Helps protect floors and furniture from scratches and damage. 2. Sturdy and stable for home, office, and industrial use. 3. Easy to install—just measure the tube size and insert the cap. Specifications: Size: 40 x 40 mm Color: Black Package Included: 16 x Square Tube Caps