1.Material: 100% Environmental New Material - PP Plastic - No Smell, Harmless to Body.2.Size: Diameter: about 40mm/1.57in, 2.4g/piece Approximately.Colored Ping Pong Balls are light weight and therefore move/roll at the slightest touch , so it is every pet"s favorite.3.Teaching Purposes: These colored ping pong balls can be used in multiple classroom games and teaching methodologies ,You can engravethe alphabet, word making, number recognition, counting, patterns, shapes, and much more. The bright colors can let children learn and have fun 4.DIY/Art and Crafts: All ping pongs are perfectly round and have a frosted surface for writing and making; Suitable for beer pong balls parties, decoration, DIY games.They can give a vivid touch to your events like Christmas, Halloween, Thanksgiving, Easter, and Birthday parties. Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it