Perfectly compatible with Milwaukee M18 18-volt lithium-ion battery 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 and more. Suitable for high-power applications and provides enough power to upgrade your wheel, toy, or robot DIY. Safe and durable, we upgrade the line protection device on the battery adapter. Equipped with a UL-listed power switch, ensuring you can easily turn the battery on and off for safety. Easy to install, slide the battery in to lock, and the adapter has 2 fixing screw holes for easy screwing. The 30Amp fuse is easy to insert into a waterproof fuse holder with a rubber cover, protecting battery devices from excessive damage. The extension cable allows you to connect the device's cord to the adapter cable. Note: battery not included. Small and portable, full of power. You can also carry an extra battery for long-distance use, allowing your children to enjoy endless wheel fun. Material: ABS color: red Package Contents: 1 pack x Electric Wheel Adapter 3 Pack x 30 Amp Fuses Only the above package content, other products are not included. Note: Light shooting 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.