A great fingertop made of high contrast woods glued together. When this top spins in strong light, you can discover an optical deception called the Stroboscopic Effect. 
Finger top
Difficulty Rating: 2
Sold individually; colors are selected at random.
DETAILS
Age: 3 years +
Product Code: GMCA347
Made In: Austria
Product Size: D. 40mm
Safety:  Warning! Choking Hazard: This toy is or contains small parts. Not suitable for children under the age of 3 years. Conforms to stringent European Community safety standard EN71.