uxcell Plastic Square Blanking End Cap Tubing Tube Inserts 38mm x 38mm - 10 Pcs Product Mame : Square Tube Insert;Top Size : 38 x 38mm / 1.5&rdquo; x 1.5"(L*W) Bottom Size : 29 x 28mm / 1.1" x 1.1" (L*W);Over Height : 18mm / 0.7" Material : Plastic;Color : Black Net Weight : 77g Package Content : 10 x Square Tube Inserts