These magnetic pockets are so versatile and strong that it's almost impossible to name all the ways they can be used! Each pocket measures 9.5" wide and 11.75" high and features a powerful magnetic surface throughout the entire back of the pocket. The magnetic backing will hold securely onto any metal surface. The pockets also feature a large clear pocket in the front which can hold up to 2 lbs worth of material! The front pocket also has an insert strip to label contents. Each pack includes 4 pockets. Recommended age 10+ years