Features: These transparent worksheet pockets can turn paper into reusable, erasable surfaces to reduce the amount of paper being used. Package 1: 10 pcs Worksheet Pockets. Package 2: 10 pcs Worksheet Pockets with Pen Slot. Package 3: 10 pcs Worksheet Pockets with Pen Slot & Marker. Package 4: 10 pcs Worksheet Pockets with Marker. Package 5: 10 pcs Worksheet Pockets with Marker. Package6: with Pen Slot & Marker & Worksheets. The oversized designs makes it easier to slip paper/worksheet in and out than many of our competitors. Both sides of the pockets are transparent, suitable for both single and double-sided worksheets. It’s also easy to clean with a soft dry cloth or tissue. Made of durable PVC or PET materials, which gives these erasable sleeves a longer life. The edges of each pocket are stitched with opaque, colored plastic binding, and the eyelet allows easy hanging. The pocket is working with most erasable whiteboard marker. It can hold up to 3 standard paper(depending on the thickness of the paper). Specifications: Material: PVC; PET Type: Style 1; Style 2; Style 3; Style 4; Style 5 Color: Black, Green, Redness, Light Blue, Yellow, Orange, Pink, Purple, Dark Blue, Rose Redness Size: Approx. 25.5x35cm/10.03x13.77in Weight: Approx. 150g Package Includes: Package Option: Package 1: 10 Pcs Worksheet Pockets; Package 2: 10 Pcs Worksheet Pockets with Marker; Package 3: 10 Pcs Worksheet Pockets with Pen Slot; Package 4: 10 Pcs Worksheet Pockets with Marker & Pen Slot; Package 5: 10Pcs Worksheet Pockets with Marker & Pen Slot & Worksheets note: 1.Please allow 0-1cm error due to manual measurement. make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you