The DeWalt DC530B 18-Volt Cordless XRP Concrete Vibrator - Bare Tool uses a 1-1/8-inch diameter vibrating head to deliver up to 14,000 vibrations per minute to eliminate bubbles in your concrete job. With a 4-Foot long shaft, the DeWalt DC530B is ready to sink into the deepest forms on the jobsite. Ready for use with your favorite 18-Volt DeWalt battery in the DeWalt DC530B will accept the new Lithium Ion cells or the NiCad battery pack. Features: Powered by the 18-Volt battery - Lithium Ion or NiCad - Batteries Not Included 1-1/8-inch diameter vibrator delivers maximum consolidation power 14,000 VPM (under load) delivers maximum consolidation efficiency 4-Foot long flexible shaft for easy use and long reach What s In The Box: DeWalt DC530B 18-Volt Cordless XRP Concrete Vibrator - Bare Tool Batteries and Charger Not Included