Flashing Panda 22 Oz LED Light-Up Flashing Mason Jar Drink Cup with Straw and Screw-On Lid, 8 Function Generous 22 oz drink capacity Simple push-button on/off/mode switch Multi-colored flashing LED lights 6" tall, 3.25" diameter Comes with 3x LR44 (AG13, L1154) replaceable button-cell batteries