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Geometric Solids

Material Solid geometric forms including sphere, ovoid, ellipsoid, cylinder, cube, triangular prism, rectangular prism, cone, square pyramid, triangular pyramid.A set...

Discrimination of Grains

Material A tray with three or four small bowls and one larger bowl. The sets contain items differentiated by contrasting...

Mystery Bag

Material A drawstring bag made of beautiful fabric.A number of small objects, rotated from time to time:e.g. a key, small...