Large Capacity This circuit tester storage box has two large zippered mesh pockets and a front pocket to hold socket repair tool kits, wires, batteries and other small items, meeting your daily work storage needs. All-Round Protection The outer shell is made of high-quality polyester that is waterproof, scratch- and tear-resistant. It is filled with thickened shock-absorbing cotton around the case, and the soft lining provides comfortable protection for your tools from scratches, impacts and moisture. Firm and Stable Designed to work with the ET310 AC circuit breaker detector. It features six highly elastic bands of different sizes and an adjustable buckle closure to fit tools of various sizes. The elastic bands securely fix tools, reduce friction and impact, and prevent scratches or deformation. Use Scenarios - On-site electrical testing and field service: store the ET310 detector, probes, wires and batteries in one organized case. - Workshop or garage organization: keep sockets, repair kits, cables and small parts neatly contained and easy to access. - Home DIY and maintenance: protect delicate tools and keep them ready for quick projects. Compatible with ET310 AC circuit breaker detector. Large capacity storage with reinforced protection and flexible tie-downs for secure tool transport.