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This review is from: MindWare KEVA Contraptions (Toy)
My 8 and 9 year old boys are Lego fanatics and have built the most complicated kits we can get, they also are fascinated by the Rube-Goldberg type contraptions they have been able to build during science camps and classes. Contraptions seemed like a great addition to their building collection. I was a little put off by some of the reviews that said they were frustrating but ordered them anyway. These do demand a degree of patience but my kids have amazed me with their creations, building 3 foot tall and 8 foot long contraptions that are truly complicated and wonderful. with young boys, the fun doesn't end with the build and roll, the destruction part is equally fun for them!! A great and durable product!