Child-friendly ambidextrous utility knife

I designed a child-friendly ambidextrous utility knife to promote inclusiveness towards left-handed individuals and safety to allow young designers and children to use cutting tools. 

This is the 10th version of the utility knife. One issue with the current version is that the plastic tab on the blade mechanism loses its elasticity after constant use.

Additional materials required for assembly (refer to exploded-view drawing):

• M4 x 30mm countersunk screw 
• STANLEY® blade