Tigre USA Pipe Insert Elbow, Plastic, 1-1/4 In. | Killingworth True Value
Amazon.com: Prescott Plastics 1 1/2” (38.1 mm) Square Plastic Plug Insert, Black End Cap for Metal Tubing, Fences, Glide Protection for Chairs and Furniture (10 Pack) : Industrial & Scientific
Amazon.com: Prescott Plastics 1.5" Inch Round Plastic Plug Insert (10 Pack), Black End Cap for Metal Tubing, Fence, Glide Insert for Pipe Post, Chairs and Furniture Legs : Industrial & Scientific