The Poly-Tom Insert was designed and tested by the engineers at our testing facility

just outside Pittsburgh Pa. It was initially designed to compliment the Lower Rim Mounting System by adding support, not only did it have to look good but it also had to aid in the sound transmission from top head to bottom head eliminating Delay and Ring with or without the Lower Rim Mount. Made of 1/4" thick Black Polypropylene, and custom fitted to any size Tom from 8" to 17", sold separately, in sets or comes with the purchase of the Lower Rim Mounting System.