Academy 18150 Da Vinci Machines Series Clock
- Nurture your child's sense of wonder and curiosity with this model clock. Based on a design created by visionary artist and inventor Leonardo Da Vinci, this 0.35-pound clock doesn't quite function like a normal clock. Instead, the pendulums' weight also acts as a power source, meaning no batteries are required. Simply snap the pieces together and your clock is ready to go. The completed clock measures 11.89 inches long, 7.95 inches wide, and 2.13 inches high.