uxcell Plastic Rectangle Blanking End Caps Tube Inserts 20mmx40mm 10 Pcs Product Mame : Rectangle Tube Insert;Top Size : 20 x 40mm / 0.80" x 1.60" (L*W) Mouting Size : 38 x 18mm / 1.50" x 0.71" (L*W);Over Height : 17mm / 0.67" Material : Plastic;Color : Black Net Weight : 44g Package Content : 10 x Rectangle Tube Inserts