Slap-Stick Magnetic Label Holders, Side Load, 4.25 X 2.5, Gray, 10/pack Sticks to any clean, flat metal surface. Magnetic pockets are easy to apply, reposition or remove. For vertical or horizontal display. Poly pocket can fit inserts up to 4.25" x 2.5" in size. Hand write or use a label maker to customize inlcuded cardstock inserts. Each pack includes ten pockets and ten blank inserts.