The Nuts and Bolts Set 2 expands on the foundational material by introducing greater variety in size, threading pitch, or configuration, making it appropriate for children who have already mastered the first set and are ready for a more complex challenge. It continues to support fine motor refinement and problem-solving within the practical life area while offering a natural progression that keeps work on the shelf feeling fresh and purposeful. Pairing it with Set 1 allows you to scaffold the work across a wider developmental range in your primary community.