A set of rainbow stacking rings building blocks offers a classic early-learning activity for infants and toddlers aged zero to three years. Each box contains 48 pieces crafted from durable vinyl, providing a safe and flexible option for little hands to grasp, stack, and explore. The colorful rings help develop hand-eye coordination and introduce basic concepts of size and color recognition. This building set comes in a color box for retail presentation. It is sold wholesale by the box.