This size classic 4 in a row board game is a fun toy, also a strategy game, it can develop the child\'s intelligence,helps children improve hand eye coordination and strategic thinking skills,to bring a lot of fun children. You can see the Product Description,thank you. Prefect size:18.4*13*14cm/7.24*5.11*5.51in,reasonable size, neither too large or small, a wonderful travel game, convenient to carry to everywhere and playing any time. Non-toxic Plactic Material: This product by ABS innocuity materials,smooth,shiny apperance can be at ease to children toys. Includes 21 red discs, 21 blue discs. Choose red or blue discs. When you get 4 discs in a row(Can be straight, horizontal, oblique, vertical way,once 4 in row), you will win. Warning & Tips: This product must be used under the direct supervision of adults. It contains small parts, please avoid contacting with children within 3 years old, do not swallow to avoid danger of suffocation.