ArtSkills Epic Lab Trebuchet Science Kit lets you or your child build a working trebuchet while learning about physics and mechanics. Learn how the trebuchet works and how to affect the launch of the clay projectiles with counterweight. The guided experiment book walks your child through building and launching. Hit the targets and destroy the castle! Customize your trebuchet with the included paint and paint brushes. Develop your child's interest in STEM fields while having fun! Details: Build and customize a working trebuchet For ages 8 and up Contents: 4 Screws 3 Clay Packets 3 Paint Pots 2 Pins 2 Pop-Out Target Sheets 2 Paint Brushes Trebuchet Frame Pieces Embroidery Floss Pouch Pop-Out Projectile Sheet Hanging Weight 1 Dowel 1 Screwdriver Guided Experiment Book