Adapter for Kobalt 24v Max batteries compatible with Ryobi One+ 18v Tools Not compatible with job site radio, job site fan, inverter, hybrid (plug in) tools, or other tools with sensitive electronics Designed, created, and assembled in the USA with USA made materials. Adapter shell is 3D printed from TPU for durability and impact resistance. Colors may vary depending on availability but will always be a neutral color. Listing is for battery adapter only. Kobalt battery and Ryobi tool not included. Low profile adapter for Kobalt 24 volt Max batteries compatiblecompatible with Ryobi One +18 volt tools.