The Plastic Safe Cover Storage Carrying Case helps to keep your battery's terminals clean and free from unwanted debris and accidental scratches, which could damage them. This polypropylene box holds one 26650 battery. This lightweight, yet strong storage box will keep your spare batteries clean, safe, and ready to use. Made out of a highly durable plastic material, it is the perfect place to keep your batteries safe and protected from any accidental shorts or impact damage. Store and carry your 18650, 16340, CR123 Li-Ion/LiMN batteries safely in our Clear Plastic Carry Case.