Durable, Compact, Strong Maxlin’s outlet adapter is made with quality vinyl which holds everything firmly in place, doesn’t shift or move, is space saving and lightweight enough to carry and transport. Single Grounded With 3 Outlets The grounded single piece contains three outlets so you have triple the power and is made in a convenient T-shape to optimize space. Heavy Duty The three pronged T-shaped outlet extender adapter is designed to support household appliances, power tools, and industrial strength items.