Join Numberblock Three at Mission Headquarters for the Super Special Secret Step Squad! Here you will find everything Numberblocks secret agents need for action-packed missions, from lookout windows to spy accessories and a ride-on elevator. Prepare for exciting number adventures ahead to practice counting, sequencing, and more. Then complete secret missions to earn your own special Step Squad badge! This set includes the Super Secret Step Squad Headquarters, Numberblock Three, a detachable slide, 11 accessories, and stickers to decorate your set. Collect all the fun figures from the hit TV series Numberblocks! A must-have set that works with the Numberblocks Friends One to Five Figure Set (sold separately). As your little one works from preschool to kindergarten, the Numberblocks Super Secret Step Squad Headquarters Play Set is a great way to make learning fun and help with the transition. From the friendly TV series Numberblocks, an award-winning show from BBC, the Numberblocks crew brings math learning to life with the Numberblocks Super Secret Step Squad Headquarters Play Set. Numberblocks is helping millions of children around the world to fall in love with numbers, master key math skills, and discover the joy of learning.