Types of Hanko/Stamps Material: Rubber This is a handmade rubber stamp. It is not an eraser stamp. These are rubber stamps, seals, and hanko made with professional-grade rubber. 150 yen discount for bulk purchases. Please comment with any questions. Perfect for studying! 4-frame type, 4-row type For language studies like English, to record the date when reviewing for the first, second, third, and fourth time. For recording the redoing of problems you got wrong in kanji, math, etc. I created these to be used for homework, school, cram school, and home study. The material and height of the wooden base vary depending on the product. There may be blurring or misalignment when stamping on the wooden base. Please understand. Also great for messages between school teachers and staff! The sample is stamped on a business card-sized card. Wooden base size: 20mm x 50mm The height of the wooden base varies depending on the product. Made-to-order (custom orders, semi-custom orders) are not available. Copyright is not waived. Commercial use (purchases for resale, use of the design, etc.) and secondary use (selling stickers, cards, etc. stamped with this hanko) are strictly prohibited. Please refrain from commercial use and secondary use. Thank you. #tama's Hanko Shop