Seat Sack offers a Small 12 Inch storage chair pocket for classroom organization that features a durable cotton/poly laminated fabric that is certified flame-resistant and machine washable. The Blue Seat Sack has a 10 inch deep pocket and a 2 inch gusset that offers ample storage space to accommodate books, papers, school supplies and more. Fits chairs that measure 10 inches or less along the very top and widens to 12" at the pocket. Perfect for classroom storage, teaching organization and behavior management.