walk Imaginative action clear tube end caps Permission raid leadership
10pcs 12-76mm Plastic Tube Insert Plug Round Steel Pipe End Caps Non Slip Furniture Leg Decorative Dust Cover Floor Protector - Furniture Accessories - AliExpress
Flexible Tube - Clear with End Cap Included caps and the bottles Flexible Tube - Clear with End Cap Included fit as caps, closures from eBottles.com 1-888-215-0023
Amazon.com: Rectangle Black Plastic Plug End Cap - 1" x 1/2” Rectangular Tube Caps - Rectangle Tubing End Cap Plug - Plastic Plugs for Rectangular Tube - Rectangular Hole Plug - Rectangular