American International USB1000 6.5" & 6.75" Stackable Speaker Extensions Combo pack 3 Pairs

These unique brackets enable installers to utilize 6", 6.5", and 6.75" speakers and raise them from their mounting surface
Includes .25", .5", and 1" Extensions (stackable) for height combinations of .25", .5", .75", 1", 1.25", 1.5" and 1.75"