Features 1 There is a bayonet inside to fix the battery to prevent the battery from rolling and to protect the battery 2 Environmental protection functions The used battery can be stored in this box to prevent the battery from leaking And different types of batteries are distinguished by boxes of different colors 3 This product is well designed and made of PP high temperature resistant material which is safe and reliable Specifications 18650 battery box can hold two 18650 or 4 16340 can support 18650 battery with protection board length about 70mm Color white green blue yellow purple random delivery carefully buy Note The package does not include the battery in the picture Package Included 20 x 18650 x 2 Sot Plastic Battery Case