Plastic Square Blanking End Caps Tubing Tube Inserts 38mm x 38mm 2 Pcs Product Mame : Square Tube Insert;Top Size : 38 x 38mm / 1.5&rdquo; x 1.5"(L*W) Bottom Size : 37 x 37mm / 1.46" x 1.46"(L*W);Over Height : 17mm / 0.67" Material : Plastic;Color : Black Net Weight : 14g Package Content : 2 x Square Tube Insert