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Block Science Unit Blocks Set B contains 56 pieces total 16 unit blocks, 6 ½ unit blocks, 4 double unit blocks, 4 triangles, 4 small cylinders, 6 pillars, 6 small triangles, 2 ½ pillars, 2 ½ cylinder, 2 ½ small circle, 2 roman arches, and 2 roof boards

Enhance and expand on block play with smooth-sanded, durable rubberwood blocks

Complements Block Science Foundation Set A

Develop fine motor skills, early engineering concepts, spatial thinking, problem solving and STEM concepts

The blocks are sized based on the basic unit block measurement of 1.4" x 2.8" x 5.5" inches.