The Trombone Grip Straight Trombone Curved Tube Bushing Kit provides an extra pair of bushings with screws and three sets of shims for use with the Neotech Trombone Grip.
It's great for musicians with a second instrument and who want to use the Trombone Grip with it. The bushing remains on the instrument so you can move the grip to a second instrument in a matter of seconds.