Description : Waterproof : It has been proven to be waterproof, therefore, you dont need to worry about shower, rain, swimming etc. 14 Days Long Stay Protection : Its reliable stick ensures a long stay of 14 days. The adhesive is Latex-Free, leaves no residue on skin after even 14 days. No Stick in the Center : It won't stick onto your sensor but protect around it , in case you need to change the patch, it brings no damage to the sensor. Natural Material : This large size(3.15 inch diameter) libre sensor patch is made of natural cotton material, it is skin breatheable, stretchable and flexible. Easy to Read: 3 Part Pre-cut back paper, easy to use by yourself, no need other's help. Also, you can easily get a reading through the tape as normal. Specifications: Size(approx.): 7.4x7x0.05cm Package Included: 25 x Adhesive Patches Package Including 25 x Adhesive Patches14 Days Long Stay Protection : Its reliable stick ensures a long stay of 14 days. The adhesive is Latex-Free, leaves no residue on skin after even 14 days. Waterproof : It has been proven to be waterproof, therefore, you dont need to worry about shower, rain, swimming etc. No Stick in the Center : It won't stick onto your sensor but protect around it , in case you need to change the patch, it brings no damage to the sensor. Natural Material : This large size(3.15 inch diameter) libre sensor patch is made of natural cotton material, it is skin breatheable, stretchable and flexible. Easy to Read: 3 Part Pre-cut back paper, easy to use by yourself, no need other's help. Also, you can easily get a reading through the tape as normal.