Cards sets are to be used with the Bernell-O-Scope™ family (BC200, BC200HHTB, BC200HH).
Each set has 8 slides of 3D Fruit and Vegetable characters with saccadic fusional movements (jump ductions). Includes cover with instructions for each set and inside cover with answer key. Both card sets have a back cover.
Base-In series has a prismatic effect from 0-14PD
Base-Out series has a prismatic effect from 3-27PD.