The HART 40-Volt String Trimmer/ Blower Combo Kit is a great pair to keep your yard looking its best. The battery-powered string trimmer features an auto-feed head that releases a 1/2-inch of line every time you press and release the trigger. So no bumping required! It also has a 10-inch to 12-inch cutting swath. The cordless blower delivers up to 120 MPH of wind force blowing at 450 CFM . making it ideal for hard surfaces and general yard cleanup. Both tools are designed to be lightweight for user comfort and have a variable speed trigger for ultimate control. Includes a 40-Volt lithium-ion battery . which provides more than enough runtime for all your yard work needs. All part of the HART 40-Volt System where you get ALL POWER . NO GAS.