Medical pen lamp, it is made of aluminium alloy fabrics, This medical lamp can be selected in two ways, one is yellow for eye examination, and one is white for ear, nose and throat examination. The side of the pen lamp has a pupillometer and ruler. Small size, easy for doctors and nurses to carry. You will need to install two number 7 batteries to turn on the lights when you receive the goods. 1 location includes the shipping cost to US. Orders of 5,000 pieces or greater are eligible for sea shipping. 100% guarantee for quality. Rush Service.