This is a 3D puzzle of sea urchin. The "sea urchin" is completed by assembling the seven disparate parts. The puzzle looks easy but is exquisitely difficult to solve.

Item Size: 6.5 x 6.5 x 4.5 cm
Box Dimensions: 6 x 8 x 17 cm

Contents of the set

• 1 shell (top), 1 shell (bottom), 5 sea urchin parts.