0.50 speaker spacers for 4 in. speaker for correct depth issues. Used to fit a aftermarket speaker in the OEM location with a universal fit. Product Features:Universal 1/2 plastic spacer ringsGives 1/2 extra depthWorks with most 5-1/4, 6, or 6-1/2 speakersMade with high grade ABS plasticUniversal 1/2 Spacers 5 1/4 Pair
