Speaker Spacer for Wet Sounds REVO 6 - 6.5" Series Speakers - .50" - BlackDon'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 - .50"Edge - 1/16" RoundOuter Diameter - 6.8" or 173 mmBolt Hole Circle Diameter - 6.2" or 158 mmMounting Hole Diameter - 5" or 127 mmCompatible With 6.5" REVO 6:REVO 6 XW-W , REVO 6 SW-W, REVO 6 XS-S, REVO 6 XW-B, REVO 6 SW-B, REVO 6 XS-W-SS, REVO 6 XS-G-SS and REVO 6 XS-B-SS*Sold as a Pair