Wooden blocks with visible wood grain and sound effects. Each of the round, triangle, and square blocks has a different mechanism, and you can enjoy watching the movement through the transparent blocks. ✿ There is considerable wear and tear, such as paint peeling. Please check the photos before purchasing. ✿ This item has been used by a child. Please understand this before purchasing. ✿ Will be shipped in simple packaging within 1-2 days. ✿ Please check my profile before purchasing. ✿ We do not accept returns, so if you have any concerns or questions, please be sure to ask in the comments before purchasing.