25mm Dia Plastic Round Blanking End Caps Ribbed Tubing Inserts 24 Pcs Product Mame : Round Tube Insert;Top Dia : 25mm / 0.98" Thread Dia : 24mm / 0.94";Overall Height : 18mm / 0.71" Material : Plastic;Color : Black Net Weight : 80g Package Content : 24 x Round Tube Insert