WoCase Double Floaty(2/pack) and Anti-fog Inserts(12/Pack) Bundle for GoPro HERO4 HERO3 3+ 2 1 Cameras A must-have bundle for water sports. Includeds 2 pcs of extra thick floaty(3M adhesive back), 12/pack anti-fog inserts, humidity indicator and portable zipper bag. Floaty attached to camera keeps it afloat. Floaty is removable from camera when applying heat (e.g. hair dryer). Drop inserts into sides of camera housing to prevent fogging in cold and humid environments. Inserts is 100% resuable and will last for approximately 4 uses. To dry out and reuse, heat inserts on a pan in oven at 300 F for 5 minutes. Extra stronger industrial 3M adhesive material. Extra strong absorbing capacity guaranteed. Low price and best quality comparable to GoPro?. 30 day hassle free money back guarantee. One year limited warranty.