Every teacher wants to have great classroom management. Easy to attach for students, teachers and parents to slide onto the back of most standard school chairs. Minimize disruption, keeps pen, pencils, notebooks and art supplies nearby so kids don't have to rummage through a backpack. Help them concentrate on studying and learning. Recommend for teachers. Easy to hang in the classroom chair back. Available in both a blue/red or blue/yellow color, all childrens will be love it. Size:16inchH x 19inchW. Package include: 5x Chairback Storage Bag