- When you friends twist the device， a surprising but harmless static shock is delivered to them<br />- Super value novelty gadget that creates tons of fun<br />- Comes with built-in 3*AG10 batteries (delivers lots of shocks)<br />- Caution: avoid giving this to friends who do not have a strong sense of hum and not recommended for children under 14 years old or persons under any medical conditions<br />                                                                                                                                Dimensions: 2.17 in x 2.17 in x 2.17 in<br />Weight: 2.15 oz