Brain Improvement Device For Kids Math Roller Stamp For Kids Math Stamp Roller Addition Subtraction Multiplication Division Ink & Reuse （Bring A Bottle Of 5ml Inkl） Features: Quick and convenient: The mathematical seal adopts a rotating design. You can easily adjust the roller of the seal, choose different arrangement methods, and print out random different questions time and energy: Math can easily print out math exercises, saving parents time Including all two types of calculations: multiplication and division Reusable: Small in size, easy to carry, can be reused after refilling ink, and prints clearly Interesting interactive learning: Math encourage children to actively learn mathematics. Children enjoy asking questions and seeking answers Product Description: Brain Improvement Device for Kids, Math Roller Stamp for Kids, Math Stamp Roller, Addition Subtraction Multiplication Division , Ink & Reuse Material: Plastic Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Package weight: 50g Package size: 6x6x4cm,(Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) For more good-looking and affordable items, please search or click the brand：Poaug Material:Plastic Assembled Product Dimensions (L x W x H): 2.36 x2.36 x1.57 Inches Contain: 1X Math Roller + 1X Ink Office Supplies,Craft Supplies,Stationery Set,Office Stationery,Crafting Tools,Notebook and Planner,Office Organization,Stationery Essentials,Crafting Paper,Office Desk Accessories,Stationery Kit,Art Supplies,Office Planner,Crafting Tape,Stationery Bundle,Office Labels,Crafting Stickers,Desk Organizer,Writing Instruments,Office Decor,Craft Scissors,Stationery Supplies,Office Notepads,Crafting Glue,Paper Clips,Stationery for School,Office Folders,Craft Paper Pack,Stationery Organizer,Office Markers,Crafting Stamps,Stationery Accessories,Office Binder,Crafting Punches,Sticky Notes,Office Writing Tools,Crafting Embellishments,Stationery Collection,Office Stapler,Crafting Kits,Stationery for Writing,Office Pens,Crafting Supplies Kit,Stationery for Letter Writing,Office Tape Dispenser,Crafting Brushes,Stationery for Journaling,Office Paper,Crafting Templates,Stationery Gift Set,