Optical Science Lab lamassu Pull on the yellow raindrop

Pull on the yellow raindrop to adjust the light settings between bright

Magnets couple the train carriages together no matter how they are oriented

nail polish

tiered challenges

Kids learn to find the missing blocks to unlock the code

Optical Science Lab lamassu Pull on the yellow raindropFeatures Suitable for 4Y and above Optical exploration Build eight exciting experiments including a Periscope, Cone Illusion, 3D Viewer, Rotating Kaleidoscope, Infinity Mirror, Optical Lab, Optical Illusion Pendulum, and Camera Obscura. Step by step learning Comes with easy to follow instructions. Kid friendly tools Simple pieces and tools designed for young inventors. Complete set Includes blocks, strips, rotators, base stands, lens holder, lens