Strength and mechanics training in one
Combine the conditioning benefits of resistance tubing with a unique real-feel ball/frame assembly for mechanical feedback and you have one of the top-rated pitcher/fielder training aids. The Arm Strong trainer has been used in rehab programs by top major league pitchers, as a component of team training programs in colleges and high schools, and in the backyards and basements of ballplayers around the world.
Both the Pro version (with 3 tubes) and the Junior (with 2 tubes) include a training manual and DVD to help you develop an exercise routine.
Use the Arm Strong at home with the door anchor strap or clip it to the ballfield fence to warm up before the big game.

The Arm Strong has three unique features that make it a good choice...
Real-Feel Rotating Ball: The ball-handle combination emulates a natural throwing motion all the way down to the fingertips. You can perform the top 20 arm exercises with the Real-Feel Ball.
Wire-Frame Feedback: The frame that connects the straps to the ball is sensitive to the pulling action and will tell you if your throwing motion is natural or forced.
Resistance Tubing: The ARM STRONG uses resistance tubing that allows for progressive resistance (details below). To order replacement tubing...

The tubing is constructed of latex and can be safely and repeatedly stretched to 2.5 times its length (see below). You can progress gradually or vary the tubing in a version of WebBall's recommend pyramid training concept.
| Power Tubes 4' length |
1.5 x its length = 6' |
2 x its length = 8' |
2.5 x its length = 10' |
| Orange |
5 lbs |
7 lbs |
10 lbs |
| Blue |
8 lbs |
10 lbs |
13 lbs |
| Black |
11 lbs |
13 lbs |
17 lbs |
| Orange + Blue |
13 lbs |
17 lbs |
23 lbs |
| Orange + Black |
16 lbs |
20 lbs |
27 lbs |
| Blue + Black |
19 lbs |
23 lbs |
30 lbs |
| Orange + Blue + Black |
24 lbs |
30 lbs |
40 lbs |