Feature:1. Scope of Application: Battery adapter is compatible with most styles of 18V to 21V, suitable for woodworking, power tool adapters.2. Multiple Protection Functions: There are short circuit protection, over current protection, under voltage protection and low power consumption.3. Premium Material: 18V to 20V battery converter is made of ABS, fine workmanship makes the products durable, not easy to damage.4. Closely Fitting: Closely fit the original machine hole position with accurate shape and size design, hand feelings are still comfortable.5. Good Workmanship: Exquisite workmanship, beautiful appearance design, small portable size, providing you great using experience.Specification:Item Type: 18V to 20V Battery AdapterMaterial: ABSColor: As Pictures ShownWeight: Approx. 120g / 4.2ozProduct Size: Approx. 11x7x4cm / 4.3x2.8x1.6inApplication: Compatible with most styles of 18V to 21V, suitable for woodworking, power tool adapters.Package List:1 x Battery Adapter