What is this?The lamp changer can easily and quickly insert the bulb into the bulb socket or remove it from the bulb socket. A perfect tool for replacing new MR16 and GU10 LED bulbs.What will I get?Product Name: Bulb ChangerColor: Black, ClearMax Suction Force: 5kgMaterial: PVC plasticFit for Bulb Size: GU10, MR16Overall Size: 35x24mm / 1.38"x0.95"(D*H)Package Content: 4 x Bulb Changer(2 Black and 2 Clear)Are there any advantages of the product?Made from soft PVC plastic material, soft PVC can provide a suction force to grip the bulb.How to use it?Clean the bulb surface firstly. Then make sure suction cup grip the bulb. Finally rotated and you can take the bulb out.What should I notice?Please make sure the bulb surface is clean before using the bulb changer.