FOR KIDS WHO LOVE, ALSO THOSE WHO FEAR BUGS: The real bugs, beautifully preserved in clear acrylic blocks, allow kids to hold the bugs in hand. Bug lovers can view them up close and at every angle. Kids who fear bugs can gradually get close to the bugs without actually touching them and learn to observe them. The insect blocks are sized to fit little hands. They are suitable for kids aged 4 or above/ preschoolers.