1" x 2" Black Rectangular Pipe Tubing Insert Caps Repair Part 20 Pcs - Overstock - 33904661
Amazon.com: Prescott Plastics 0.5" Inch Square Plastic Plug Insert (8 Pack), White End Cap for Metal Tubing, Fence, Glide Insert for Pipe Post, Chairs and Furnitures : Industrial & Scientific
4Pcs 74mm Dia Plastic Tubing Plug Round for Handrail Stair Newel Guardrail Tube - Black - Overstock - 35526163
20x20 Mm Square Tube Plug Plastic End Cover For Blanking Tube Cap. Pad Arched Ball Head Surface Round Shape Chair Beach Bed - Furniture Accessories - AliExpress
10pc Furniture Steel Pipe Round Rubber Plug Spherical Head Round Plastic Plug End 16-35mm Chair Foot Cover Furniture Accessories - Price history & Review | AliExpress Seller - HONGTU Global Store | Alitools.io
Amazon.com: Prescott Plastics Made in USA 0.875 Inch Square Plastic Plug Insert, Black End Cap for Metal Tubing, Fence, Glide Insert for Pipe Post, Chairs and Furniture (10 Pack) : Industrial & Scientific
Square Tube Insert Plugs Pipe Blanking End Edge Caps Bungs Made in Germany, 35x35mm Square - Pack of 100 (Before Purchasing This Size, Please See 2nd Image for Dimensions and Ordering Guide) -