We are committed to providing you, our customer, with the best service possible. If you have any questions about a product you purchased from us, just send us the product code (item number), the date of purchase, your contact information and your question. Our staff will be happy to answer your question(s). Please provide the following CONTACT INFORMATION - Name, Zip Code, Daytime Phone Number. We appreciate it if you also would provide the following information - Street Address, City, State. Please send your question(s) to us via e-mail: help@thesciencefair.com Be sure to include a product (item) number, if you have one. Or, a product description. Your question(s) will be reviewed by one of our knowledgable staff. You should receive a response within 1-3 days. (All personal information is for our records only and will not be provided, or sold, to a third party under any circumstances.)