1.Functional tool: Our open caulking tube has a good sealing effect, which can keep your sealant and prevent air and moisture from entering the caulking tube or bottle. 2.Easy to use: just put the rolled bottle cap on the opened caulking tube or the tip of the bottle, and the tube can be sealed tightly, which is time-saving and convenient 3.Save money: We provide you with convenient and flexible solutions to keep your caulks and glues and clean, reusable, and can extend their service life while saving you a lot of money 4.Versatility: These caulk sealants are suitable for almost all sizes of caulking tubes, plastic bottles, adhesives or any other items on your shelf, and are versatile enough to be used in your life 5.They are made of high-quality latex materials and can be used for multiple purposes Colour:red Material:emulsion Package Contents: 20 x 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.