Sharper Image Silverline Coccyx Cushion - Tailbone Pain Relief Extra-Large Pressure with Cooling Gel Pad, 46cm x 42cm Ergonomic Design, Washable Cover, Non-Slip Base

Coccyx Relief: Orthopaedic cushion for chair reduces pressure on your coccyx and tailbone support cushion design helps relieve discomfort during extended sitting at work or home Extra Coverage: Generous 46 cm x 42 cm dimensions provide superior pressure relief for sitting compared to standard chair pillows, supporting your entire lower body comfortably Cooling Technology: Built-in gel layer with memory foam construction keeps you cool during long sessions; remove the cover for direct gel contact against your skin Universal Fit: Ring cushion design works with wheelchairs 18 inches wide and larger, office chairs, car seats, and dining chairs for lumbar support wherever you sit Easy Maintenance: Removable, machine-washable cover with non-slip base stays securely in place on any surface whilst protecting your cushion from daily wear and spills