JJC MCR-312X32 Battery Storage Box holds up to 32 P312 / P10 / P13 button cell batteries. Compact and portable, it offers large-capacity storage to meet both daily backup and travel needs. The case is made of premium ABS material, which is sturdy and durable. It features an ergonomic locking switch design for safe and convenient operation. Featuring a sealing ring to effectively protect the batteries inside. Both the upper and lower lids are equipped with magnetic panels that securely hold the batteries in place, preventing them from shaking or falling out. The interior includes a precision-molded EVA foam insert that cushions shocks and impacts. The independent slot structure keeps the batteries organized, allows for easy access, and prevents short circuits or scratches caused by contact between batteries. A magnetic foam pad is included to help you remove batteries easily and to prevent contact between batteries stored in the upper and lower lids. Additionally, a lanyard is included to make carrying easier and reduce the risk of loss.