A set of 4 blocks that are rectangular prisms with concave faces to facilitate holding firmly. The surfaces are polished to a fine glossy finish. Each block has 10 sockets and there are 40 knobbed
cylinders that fit into these sockets. The knobs are the pencil grip type.Block A: Varying in height with diameter constantBlock B: Varying in diameter with height remaining constant. Block C:
Varying in height and thicknessBlock D: Varying in height and thickness. But while the height increases, the diameter decreases.All the variations are in regular intervals of 0.5cms
Set of 4 wooden blocks
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