16 Pcs Black Inner Plug Dust Cover Plastic for Metal Tubing, Fences, Glide Protection from Chair Legs and Furniture, Durables Hole Plugs（Round 18 x 30mm）

【Size】- 18 x 30mm/0.71x1.18inch(Outside dimensions) 【Material】- The square caps uses PE material, black, toughness, durables, corrosion-resistant, waterproof, and will not rot or swell when exposed to moisture. 【Feature】-Installing our plastic square stopper is quick and hassle-free. No tools are needed, and they can be installed by hand within minutes. This makes them a convenient solution for both household and outdoor projects, saving you time and effort. 【Package】-Package include 16pcs black plastic square stopper. 【Widely Use】- Plastic square stopperare work great for fencing railing posts, patio furniture leg tips, gate rail post covers, trailer frame ends, pole pipe rod caps, metal bike rack fittings, wrought iron steel finishing plugs, or any square opening.