The Best 50 Models Erector Set features simple and sophisticated moving parts with a 6V motor combined with the traditional erector set functions, accessories, mechanisms and tools! 605 parts with directions that builds 50 different models. For ages 8 to 13 years old from BRIO Toys and IQ Kids, your educational toy superstore! Availability: Usually ships in 2-3 business days. 839550Regular price: $109.99IQ PRICE: FREE GROUND SHIPPING ON ALL ORDERS OVER $75.00. Please entry FREESHIPPING in the coupon box on the second page of the checkout. Offer valid for the 48 contiguous states. Certain oversize and drop ship items are excluded.