I have bought this as a gift for my son-in-law who likes to make use of visual-aids when he presents Christ to those around him. The may sides of the cube all represent the many facets of the gospel message. Very well done!
I have seen the Lord save many souls (particularly children) through this. It is inexpensive, simple to use, and effective. We focus on street evangelism, but I recommend it for use in preaching the gospel anywhere. Possibly the easiest way to complete the Great Commission, you need to own one of these!