OBLO puzzle spheres is an award winning 3-D spherical puzzle that both challenges and inspires children of all ages. To graduate from one layer to the next, users must find the correct position for each piece in order to progressively build spheres within spheres. OBLO puzzle spheres helps developing intelligence as well as fine motor skills of preschool children.

Material: ABS plastic

Size: 83 mm (3,26 in) diameter
Thickness: 5 mm (0,2 in) uniformly
Weight: 300 grams (0,66 lbs)

Age: 4+ yrs.
Designed in Croatia
Manufacturer: Great Circle Works Inc. (CA), greatcircleworks.com

Credits:
Inventor/ Product Designer: Marko Pavlovic (HR), marko-pavlovic.com
Directon, Animation: Marin Balaic (HR), marinbalaic.com
Music: Max Brodie (UK), theboxstudio.co.uk​​​​​​​