10" Subwoofer Speaker Spacers Depth Extender Extending Rings - 1/4" Thick - ID: 9 1/8" OD: 10 7/8" - 1 Pair - SSK10 - Stackable - Perfect for Framing Fiberglass Enclosures
Brand: MJM Car Speaker Adapters


Allows for extra depth spacing to install deeper speakers
PVC construction is tough as nails
Stack 2 or more pair for more depth clearance