This set includes soft, squeezable blocks designed for children aged 6 months and older. The blocks are made from non-phthalate PVC and are BPA-free for safety. They feature bright colors, numbers, animal designs, and shapes to engage young children. Due to rapid packaging after manufacturing, the blocks may initially have a noticeable plastic odor. If present, we recommend airing them out in a well-ventilated space for 24 hours before use. The set complies with standard safety regulations for infant toys.