Good posture means that our children will be healthier, more comfortable and more attentive in class. The Titan One Piece chair was the first one piece chair to conform to BS EN1729 Parts 1 and 2 in the UK for ergonomic design, functional dimensions, strength and stability. This range has been designed with a unique leg system which actively prevents children leaning back on their chairs. The Titan chair stacks safely and neatly when not in use, seat heights 260 and 310mm stack safely up to 9 high whilst all the other sizes stack up to 12 high. It is recommended that Titan chair trolley (D10741) is used for safety and transportation around school. Please remember to specify the colour and height you require on your order.Dimensions : 510(H) x 260(SH) x 360(W) x 275mm(D) .