Speaker Spacer for Infinity Reference Series 6.5" Speakers - .50" - 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 - .50"Edge - 1/16" RoundOuter Diameter - 7.01" or 178 mmBolt Hole Circle Diameter - 6.14" or 156 mmMounting Hole Diameter - 5.04" or 128 mmCompatible With 6.5" Reference:622MLW and 622MLT*Sold as a Pair