Safe and comfortable material - made of natural cotton fabric. Lightweight, latex free, hypoallergenic, breathable, elastic, safe and comfortable for the skin. In addition, the removal is almost painless and there is no adhesive residue on the skin. Dry and sweat resistant - quick drying, waterproof and sweat resistant. Don't worry about taking a shower, running, exercising, etc. These small things will keep you active in any weather condition and bring you a better life. Easy to use, this patch is suitable for Freestyle Libre 1/2/3/Pro sensors. There is no glue in the center, it will not stick to your equipment or damage your sensors. Simply peel off the pre cut backing paper and stick it onto your device, and it will firmly adhere to your skin, providing continuous protection for your sensors. Delivery quantity: 20 pieces Packaging content: Only the above packaging content is included, other products are not included. Size: 7.4 * 7 * 0.05cm