Features Include :The Titan One Piece chair is the perfect answer to a demanding classroom environment. Maintenance-free with no pinch points or sharp edges.Tested to EN1729 standard for perfect ergonomicsThe One Piece is anti-tilt by design, ensuring safety in the classroomStackable up to 15 highMoulded carry handle for easy rearranging in the classroomThe first educational chair to obtain certification for strength, stability and ergonomicsSuitable for users up to 115 kgAvailable in green, blue, purple, red, orange, yellow, lime, charcoal, black, grey, burgundy and sky blue