DOUBLE LAYER DESIGNThe top layer of the electrical tester storage case is compatible with a circuit breaker tester, a socket repair tool kit, and an electrical outlet tester. The bottom layer is compatible with an electrical voltage test kit and a digital multimeter. SIX ELASTIC BANDSDesigned with 6 highly elastic bands of different sizes. The hook and loop fastener easily adjusts to fit different sizes of tools. The elastic band holds the tool securely, reduces friction and collisions, and prevents scratches and deformation. Two Large Mesh PocketsIn addition to its padded interior, this electrical tester carrying case has two large zippered mesh pockets. The tool case is specially designed with large compartments for cables, batteries, screwdrivers, and other small items. Whether you need accessories during your work, you will find and use them quickly. We used sturdy double zippers, easy to open and close, for easier and more reliable use of your tools. All-round protection: The outer layer of the voltage detector bag is made of polyester, which is waterproof, scratch-resistant, and tear-resistant. It is filled with thick shock-absorbing cotton, and the lining is soft and comfortable, perfectly protecting your tools from scratches, bumps, and moisture. Easy to carry: A wider handle is specially designed for easy carrying when traveling or on the go. Lightweight and compact, it fits perfectly in your car or luggage.