uxcell Plastic Square Blanking End Caps Tube Inserts 25mm x 25mm 20 Pcs Product Mame : Square Tube Insert;Total Size : 25 x 25mm / 1.0" x 1.0"(L*W) Thread Size : 24 x 24mm / 0.94" x 0.94" (L*W);Over Height : 17mm / 0.7" Material : Plastic;Color : Black Net Weight : 68g Package Content : 20 x Square Tube Inserts