Discovery Mindblown - Toy Early Engineers Building Set - 88 pcsEasy Pieces. The kit comes with threaded blocks, nuts, wheels, screws, non threaded brackets, and even some screw in eyes to bring your creations to life. The storage case also has threaded inserts on every side to become the platform for even larger builds. Parts to spare. The 87 piece kit comes with multiples of every part for creating endless combinations. Create endless combinations. Build a bug, a dog, a spaceship or a creation of your choice.