Usage Tips:[Function]DW18ML Battery Adapter Allows you use of the 20V Max Lithium batteries and enables the M-18 18V tool to work well. (Battery not included, adapter only). [Compatibility]This DW18ML Convert adapter top port for M-18 18V cordless power tools. Convert adapter bottom port for 20V Max Lithium Batteries, to Replacement for 18V Lithium Batteries. [Easy to Use]The adapter is easy to install and remove. [Notice]This Adapter cannot be used for battery charging. Please remove adapter before charging battery. [ & Reliability]Safe Desigh, ABS high quality material. All Adapter comply with CE, FCC and RoHS testing standards. Material: plastic colour: black Package Contents: 1 x Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.