Box of challenge is a monthly subscription box. Boxes include challenges, brainteasers, puzzles, instructions and tons of inspiration. Perfect for spending quality time with your family and for hanging out with friends. Whether you’re 8 or 88, you’re sure to enjoy it. Every month we send a new surprise challenge, and it's a race against the clock, you have 60 minutes to complete the challenge. We do free shipping and members can cancel at any time, No questions asked.