About this itemEasy to Use: Including 60 Pack Sensor Covers for libre 2 without device, value for money. This sensor cover can protect the sensor from falling off, and it is simple and convenient to useWaterproof and Breathable: This transparent adhesive patch is waterproof and breathable, which protects the skin and allows the skin to breathe freely at the same time. You can swim and shower freely, and don't worry about rainy daysLatex-free and Hypoallergenic: Latex-free medical materials can be used by people with sensitive skin. Breathable and comfortableAttention: Our items adopts double-layer packaging. Please open all packaging so that you can find all the items. If the packaging is damaged during transportation, resulting in missing items, please contact our customer service to resend the missing items. These items are only sensor covers. items are only used to protect sensor. Our items do not include the devices required to check blood glucoseSatisfaction Service: If you have any questions, please contact me on Amazon, we will reply you within 24 hours and help you