Nothing beats the RYOBI 18V ONE+ system for the perfect union of convenience and versatility. This 18V Cordless Edger features a lithium-ion battery that works with all RYOBI ONE+ tools. With a lightweight design and instant starting, it also features a 9 in. dual serrated blade with a 4-position adjustable depth control. The RYOBI 18V ONE+ Lithium-Ion battery recharges in just an hour and provides your ONE+ tools with fade-free performance for the entire life of the charge.