12 Holes Saury Hand Canvas Pen Curtain Color Lead Roller Pen Bag Storage Stationery Box1. Material: Canvas2. There are two extra large holes on the left and right sides of each pen case, which can be used to place small erasers, utility knifes, etc.3. Application: the thickness of the penholder is less than 1cm, and the length is less than 19cm4. Canvas material, washable and wearable5. Colored pencils are shooting props, not including pencils6. Dimensionsweight:-12 holes: width about 20cm x length about 23cm weight about 55g-24 holes: width about 20cm x length about 34cm weight: 80g-36 holes: width about 20cm x length about 46cm weight about 105g-48 holes: width about 20cm x length about 58cm weight: 120g-72 holes: width about 20cm x length about 82cm weight: 175g