Ergonomic design to correct children's posture and maintain a healthy spine | Superior Strength - To withstand the toughest of environments | Classroom safe with no sharp edges | One piece construction manufactured from high impact polypropylene | Stackable up to 12 high | Unique S shaped back to comply with EN1729 Part 1 | Due to freight costs, some orders may incur a delivery charge and this will vary depending on the order, particularly in regional areas. Delivery costs can be confirmed at the time of order. Some items require assembly, if you need help this can be advised at the time of order. A service fee for assembly/installation may also apply. Delivery lead times may apply to some items, this can be confirmed at the time of order