The caulk extension nozzles are of high quality plastic, which prevent from being bending.Caulk tips can be applied in a wide range of applcations, from the construction to the industrial sectors,serving as the tool for door and window installation, or for daily maintainence, for repairing floor tiles, gaps, etc.The perfect seamless combition of the rubber nozzle and the nut can save the unused glue and not harden it, which is convenient for the next use and reduces waste.Features- Color: White.- Material: Plastic.- Size: Approx. 11. 4 x 1. 7 x 1. 7cm(LxWxH).Package Including ：40pcs X Plastic Caulk Nozzle