All the functionality fo your normal big gym clock but in the palm of your hand. This little fella can be mounted on any steel surface due to its magnetic built in strip.
 
This is a must have for those in a busy open class where personal timer use can be scarce. It can also be a nice money saver for a home gym, being just a fraction of the price of a conventional timer. 
 
Lets not forget those qualifiers; have your time in shock at all times for your indivdualised qualifier vids.