Surge Protector power strip+Transparent Design: Surge Protector Receptacle protects your appliances from lightning storms or spikes in current. With transparent design, you can clearly see the sturdy internal components of this outlet, applying PBT extra hard material, H65 brass, C5191 Phosphor Bronze modular mounting pads, and environmentally friendly flame-retardant PC shells with a flame retardant rating of 1385°F, so it is more durable, and you can feel safe to use it! Safety Structural Design:Our patented socket has been designed with safety as a top priority. It is compatible with standard American plugs and is equipped with a safety lock where the plug needs to be fully inserted to energise. This limits access to unintended items and helps prevent potential electrocution. Space Saving & Travel Ready: The compact size (5.9*1.97*1.3IN) takes up less space on your desk or luggage, a must have accessories for travel, colleague dorm room, home, office, bedroom, kitchen and etc.