Leak-proof Design -- Our caps are designed with a screw cap that screws securely onto the bottle to ensure that the liquid stays inside, so you can say goodbye to the worry of liquid spillage. And the cap is easy to unscrew, making it very convenient for you to control the dispensing Good Sealing -- Each dispensing bottle cap comes with an individual and clear cap that ensures the contents stay moist and secure, so you don't have to worry about dust, debris or small bugs getting inside the bottle Durable and Dependable -- Our bottle caps are made of quality plastic materials that strong and durable, providing the perfect combination of squeezability and strength, not easy to break, to ensure long-term use Easy to Use and Clean -- Simply screw it onto a bottle with the right neck size. Pour the liquid into the bottle and screw on the caps, flip the bottle over and gently squeeze, the liquid will flow evenly through the small hole at the top of the cap. These caps are easy to clean and reusable, it is a great choice for you. Package & Size -- The package includes 30 pcs black squeeze bottle cap, the sufficient quantity is enough for your daily needs. The size of the bottle cap is about 24mm/0.94 inch in inner diameter, 26mm/1.02 inch in outer diameter, 4.5cm/1.77 inch long. Please check the size carefully