12 Pcs 28mmx28mm Plastic End Caps Square Tubing Tube Pipe Insert Black Product Mame : SquareTube Insert;Top Size : 28 x 28mm / 1.1" x 1.1"(L*W) Thread Size : 27 x 27mm / 1.06" x 1.06"(L*W);Overall Height : 17mm / 0.67" Material : Plastic;Color : Black Net Weight : 47g Package Content : 12 x SquareTube Insert <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.