You are Buying a brand New And Factory Sealed Ryobi P531 18-Volt ONE+ Speed Saw Rotary Cutter with Charger, Lithium-ion Battery and Rotozip 

Includes: Ryobi P531 Rotary Cutter, P128 18-Volt Battery and Charger, Rotozip GP8 Cutting Bits
27,000 RPM. Accepts 1/8 in. and 1/4 in. bits for a variety of cutting applications
Tool less depth setting and Spindle lock for easy 1-wrench bit changes
Drill Bits: use for controlled drywall cutouts, 1/8 in. shank diameter
Backed by a 3-year limited warranty and part of the more than 100 plus Ryobi ONE+ system of tools