http://tinyurl.com/ok6lr5f

Sealife Small Moisture muncher 10 capsules, 1.5 grams each

Capsules fit inside the flash battery compartment to help protect lens and electronics from humidity

Prevents damage and corrosion from harming your camera equipment

Keeps lens from fogging up

Fits all ReefMaster camera housings, and can also be used inside Sealife camera housing

Dimensions: 5.9 x 5.9 x 1.6 inches (WxHxD); weighs 1.3 pounds