IQ Test Cubes (Black and White) – 9 Kohs Cubes, Practice for Block Design Test, BDT, WPPSI, WAIS IV and WISC V Test, Montessori Educational Blocks to Improve Concentration, Coordination and Memory

IQ Test Cubes (Black and White) – 9 Kohs Cubes, Practice for Block Design Test, BDT, WPPSI, WAIS IV and WISC V Test, Montessori Educational Blocks to Improve Concentration, Coordination and Memory

PrfcNL IQ Test Cubes (Blue and White) – 9 Kohs Cubes, Practice for Block Design Test, BDT, WPPSI, WAIS and WISC Tests, Montessori Educational Blocks to Improve Concentration, Coordination and Memory

PrfcNL IQ Test Cubes (Red and White) – 9 Kohs Cubes, Practice for Block Design Test, WPPSI, WAIS IV and WISC V Tests, Montessori Educational Blocks to Improve Concentration, Coordination and Memory