Major advantages of this product over other connection devices are:
- Device does not strap around and across the player's chest.
- Forces player to pull arms in towards their body throughout the swing which encourages this same action once removed.
- Very easy to put on and take off.
The Spine-A-Lin'r is available in medium and large. The appropriate size is done by chest measurement in inches, but shirt size is also a good gauge for what size to get.