Black * Medium * Construction for ultra comfort with advanced ergonomic support for your back * Designed to increase comfort by aligning your spine and supporting correct posture * Unlike traditional L shaped chairs the S shaped frame of the Obusforme molds your spine into proper anatomical alignment * Muscles relax leaving you more comfortable and energized * Features molded impact resistant lightweight polycarbonate frame * Durable polyurethane foam protects frame and provides cushy comfort * Hypoallergenic cover can be removed and spot washed * Double straps with lock buckles to secure to your seat * Use together with any Obusforme seat * Beautiful impact retail packaging * Width 12.5 Height 23 Thickness 3.5