Battery Wraps 21700 - 2 Pack 21700 BATTERY WRAPS  Colors: Black, White, Clear, Orange, Yellow, Green, Red, Blue Pre-cut to fit perfectly for size 21700 Batteries PVC heat shrink wraps Includes 2x 21700 battery wraps (color of your choice)  WARNING:The user must have appropriate understanding of lithium ion batteries before purchase. Do not keep batteries loose. Never use a battery with damaged wrapping where you can see the exposed metal of any kind. An unwrapped or damaged battery is guaranteed to be a potentially dangerous battery. Always inspect your batteries. If you are unsure, it's best to get new batteries or have an experienced individual re-wrap your current batteries.  Plastic Battery Case (Holds 2 Batteries)Available Here