The Sperry Non-Contact Voltage Tester with LED Flashlight Yellow and Black 1 x 0.56inch is used to detect voltage and check manufactured electronic products. This is a premium quality product that is manufactured by using quality assured material and advanced techniques, which make them up to the standard in this highly challenging field. The materials utilised to manufacture are sourced from the most reliable sources from all over the globe.-Yellow and Black-Size (9.8x22.4x3)