Safe, authentic and completely unbreakable, our classroom-friendly specimens put living things right at kids' fingertips! Each incredible set includes 4 real specimens that are permanently encased in indestructible, lightweight acrylic...so even beginners can safely explore them from every angle--and even drop them without breaking! Plus, the name of each specimen is silkscreened right on it, so they're a cinch to identify. You get all 5 sets below, each in a wooden box with a teacher's guide. Butterfly specimen is 3" x 3".