Material : Plastic & Metal
The following people are not suitable to use Knee Massager
Industrial control chip micro-controller
the thick seat and backrest support your posture and reduce fatigue
Wide wing-like design fits perfectly around the hips without compromising leg movement
Ryobi 18V 4AH Battery Compatible Replacement Battery Model:Ryobi Battery 18V Material : Plastic & MetalPower up your Ryobi tools with the Aftermarket Replacement Ryobi 18V 4. 0Ah Lithium Ion Battery, a high capacity battery designed for Ryobi ONE+ 18V cordless power tools. Built with premium Samsung Sony cells, this battery delivers reliable performance and extended runtime for your drills, saws, lights, and more. Compatible with a wide range of Ryobi tools and chargers, its the perfect replacement for your Ryobi P105, P106, P107, and P108 batteries.