Plastic end caps, plastic products for box section, pipes, tube inserts - 45x45mm Square end caps availabe in Pack of: 1 end cap, 4, 8, 12, 24, 36 and 100 end caps
50 x 25 Plastic Tube Insert / End Cap - Towing and Trailers Ltd
Square Plastic End Caps Blanking Plugs Box Section /Tube Inserts / Black | eBay