Tama hard to collapse abacus for children

摘要

The present invention can be inclined , even if vibrated , to provide for children abacus beads is difficult to collapse . The upper part of the curve of A right arm portion 105 of the left arm 104 and the elastic body of the elastic body of the ball 300 , press the frame 71 , hardly broken a ball 300 . [ Selection Figure Figure 5