Office Star KC Series Ergonomically Designed Adjustable Knee Chair with Memory Foam Padding and Casters, Espresso Finish Wood Base

Flash Furniture Mobile Wooden Ergonomic Kneeling Chair in Black Fabric

Gaiam Adjustable Custom-Fit Balance Ball Chair, Stability Ball Desk Chair with 55cm Yoga Ball, Inflation Pump and Exercise Guide for Home or Office, Grey

SLEEKFORM Ergonomic Kneeling Chair, Adjustable Stool For Home and Office - Thick Comfortable Cushions

Orthopedic Coccyx Seat Cushion – Comfort and Relief for Back, Tailbone and Sciatica Pain – Memory Foam 100% EverRelief® Guaranteed – Non Slip Bottom

Aylio Coccyx Seat Cushion | Back Support, Tailbone and Sciatica Pain Relief, Washable Cover

Boss Office Products B248 Ergonomic Kneeling Stool in Black

Sleekform Kneeling Chair for Perfect Posture | Ergonomic Knee Stool Relieving Back & Neck Pain | Adjustable Height, Rolling Wheels for Office & Home | 4" Soft Comfortable Cushions & Washable Mesh