[Replacement Extension Tool Supplies]: These plastic caulk nozzle tips are used in the installation of doors ,windows; and for daily maintainence,such as the repair of voids, space, wall tiles, floor tiles, and floors. [Durable Construction]: The extension tips are made of durable plastic, so they 't crack or break when they come in contact with caulk or other harsh chemicals. [Ergonomic Design]: They're also designed to be ergonomic, so you can apply caulk to any surface without causing strain on your hands. [Fits Most Standard Caulk Nozzles]: The extension tips are designed to fit most standard caulk nozzles, so you 't have to worry about finding the right fit. [Easy to Use]: These replacement nozzles are easy to use and will help you the right the first time. Colour:White Material:plastic Package Contents: 100 * plastic caulk nozzle tips Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.