Lot of 10 Blue 21700 PVC Lithium battery wraps including 5 insulators. Condition is "New". Shipped with USPS First Class. If the wrap or jacket on your 21700 battery is ripped or torn it becomes a potentially dangerous situation. This auction includes 10 Blue wraps perfectly cut for your 21700 battery. I also include 5 self-adhesive insulators for the top of the battery in case you need them. Batteries Not Included. To be applied with a heat gun also not included.