Math in a box. 
 
Type: Educational Toys
Brand Name: UCMD
Product name: Magnetic Puzzle- Addition & Subtraction
Style: Educational Toys
Packing Size: 275 x 42 x 205 mm
Packing: Gift box packing, suitcase packing
Usage: Teaching, competition, recreation, training
Feature: Flexible magnet, writing and drawing board
Function: Kids toy, educational tools
Age: Age 3+