Speaker Spacer for JL Audio M6 & M Series 8.8" Speaker - .25" - WhiteDon't have enough depth to install your speaker/subwoofer? Problem solved these spacer rings give you that extra space needed to mount your speaker/subwoofer.Specifications:Thickness - .25"Edge - 1/16" RoundOuter Diameter - 8.80" or 224 mmBolt Hole Circle Diameter - 7.97" or 202 mmMounting Hole Diameter - 7.375" or 187 mmCompatible With 8.8":M880-CCX-SG-WH, M880-CCX-CG-WH, M880-CCX-SG-TB, M880-CCX-CG-TB, M880-CCX-SG-WLD-B, and M880-CCX-SG-TLD-BM6-880X-C-GwGw, M6-880X-S-GwGw, M6-880X-S-GmTi, M6-880X-C-GwGw-i, M6-880X-S-GmTi-i andM6-880X-S-GwGw-i*Sold as a Pair