This BLACK+DECKER® MATRIX™ 20V MAX* 7-Tool Combo Kit is great for DIY projects around the home. Decorate, repair, and even inflate tires + toys using this combo kit. The compact system can be neatly stored away in its MATRIX™ storage case. The MATRIX™ Quick Connect System is a part of the BLACK+DECKER® 20V MAX* POWERCONNECT™ BATTERY SYSTEM which allows you to use one battery for multiple different tools.