Features: Interchangeable bracket and elastic headband. Convenient to wear, operate and not easy to fall off. 4 kinds of lens in different magnifications to choose(10X, 15X, 20X, 25X), and quick to switch. 2 Adjustable LED lights, provide light in dark places. Both eye patch can rotate 180upand down. Suit for watch repair, jewelry, circuit board, microscopic carvings etc.