4pcs Rechargeable 18650 Battery With Two way Rechargeable Slot Battery 

• High Quality Material: The breast tape is made of 95% cotton and 5% spandex, safer than duct or gaffers tape, and the self adhesive bra has a non-woven fabric outer surface and a medical grade silicone lining. Hypoallergenic, soft and comfortable. They are ergonomically designed to make you feel like wearing nothing.
  Strong Adhesion: The bo obtape and the nipplecovers have a strong adhesion and do not fall off easily. And they are waterproof, even though you are wearing it under the water or you sweat a lot, they will keep attached to the body like the second skin.
  Natural Look and Invisible : Flesh tan color, very thin so it isn't easy to detect. Perfect solutions for Tops, Blouse Shirts, Strapless, Backless, Deep-V, Wedding Dress.
  Wide Application: Perfect for backless/strapless dresses, t-shirts, halter tops, wedding gowns, sports bras, swimsuits. Friendly to A-E cups, the bra tape will lift and push up even the heaviest breasts to achieve the bo ob shape you want.
  Multi-functional Tape: The body tape can be attached to your feet and prevents your shoes from rubbing your feet. Using it as the sports tape, you can protect your muscle tissue during exercise.