This robust set of chunky wooden blocks with real bug images encourage kids to use their imaginations as they examine insects! The set consists of 33 Birch plywood, double-sided bug blocks. All pieces are clearly coated with a non-toxic, water-based lacquer. The thick, Birch minibeasts easily stand upright on their own for imaginative play. This set includes a spider, bee, praying manties, worm and so much more! Size of mantis: 4.2"L x 3.3"H. All blocks: 0.8" thick.