Box Jumps with Drop Step - This is a mid level plyometric exercise that is excellent for building and displaying vertical jump power. More specifically it is a great exercise to develop your two foot jumping capabilities. In addition to squats and deadlifts, this exercise can make significant changes to increase your vertical. By performing a drop step you are creating a more dynamic environment for the athlete by allowing them to perform a quick counter movement prior to jumping. It will also teach the athlete how to properly gather their feet prior to jumping which is very applicable to many sports.
Find a box that is appropriate to skill level. While facing sideways to the box, perform a quarter turn by first moving your inside foot followed by the outside foot. Explode up to the box, land under control with both knees in line with your middle toe.