Since this battery adapter is designed with the light weight and compact structure, it can be stored and carried separately, in other words, it can be separated from the area of high and low voltage conversion to make the device safer.Converting the batteries that have different specifications is the main purpose of this battery adapter, which is practical and convenient to use.This battery adapter is mainly made of fireproof ABS, which is anti-corrosion and anti-heat.Its length is 11cm, its width is 7cm and its height is 4.2cm.It is suitable for MILWAUKEE 18V cordless power equipment.Item Name: Battery ConverterMaterial: Fireproof ABSRated Voltage: 18VType: 18V Battery to 18V Battery BatteryApplicable Products: for BOSCH 18V BatteryConvert Product: for Makita 18V BatteryFeatures: 18V to 18V, Voltage Transformer, Safe to UseSize Details:11cm x 7cm x 4.2cm/4.33" x 2.76" x 1.65" (Approx.)Package Includes:1 x Battery AdapterNotes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.This item can not be used for power tool battery charging, this adapter will not fit into any chargers. If you need to charge your power tool batteries, please use the old battery chargers. Have a great time shopping!