The Micro Wanachi keychain is the world's smallest massager that’s BIG on thrills! At just 2.5” (6.3 cm) tall, this tiny tickler is perfect for on-the-go fun, anywhere and any time! Just flip the ON/OFF switch and you’re ready for a good buzz. Keep it on your keys and you’ll aways be ready for action! Batteries included. <em>Product Dimensions Coming Soon </em> CAUTION: This vibrator is not intended for therapeutic purposes and is recommended for external use only. Prolonged and frequent use is not advised or recommended as these items are sold for novelty purposes only. This vibrator should be used with discretion.