Product DetailsABS high quality plastic, its safety meets the European and American toy safety standards and GB standards.-Packaging: no original box, sealed bag packaging-Instructions: no paper instructions, only electronic instructions.-Number of blocks 414 pieces-Size: 12X12X23 cm (Due to manual measurement, the size may have 2 cm/1 inch error)-Gift target:/Block lovers/collectors/friends/children 6 years old and above5-We provide substitute shipping service, whole is welcome, become a fan of our shop, you can enjoy more discounts, I will appreciate your good comments, thank you These blocks are made of high quality materials, safe and environmentally friendly, harmless to children's health. They are suitable for children over 6 years old, if your child is younger than 6 years old, please play under adult supervision to prevent children from swallowing small parts. Colour coded models make building more intuitive.