Meet VertiMax V8 EX : a smart training system that helps you maximize your speed and sport-specific performance. V8 EX has 8 built-in adjustable resistance bands for leg and arm loading. The V8 EX extends out to 60 feet. You have the ability to load up to 8 body points simultaneously with adjustable load resistance bands.
The above video gives you a better idea what the V8 EX system is capable of delivering. More information is available here.