YJ075B Looks like a fancy ball point pen that will give your friends a shocking experience when they try to use it. Offer it to your friends to use and after they push the button at the top of the pen， they will get a quick and harmless electric shock that will make them scream and jump with surprise. Great fun. An ideal gift for friends， relatives etc. Powered by four LR41 batteries (Batteries included). Emits electrical shock， it may interfere with electrical devices. Powered by one AAA battery (included). Package Details Weight: 24.61 g Size: 17.8*4.8*1.8 cm Package Includes 1 × 2 in 1 Electric Shock Gag Pen