uxcell Car Black 4" Plastic Speaker Spacers 11mm Depth 2 Pcs Product Name : Car 4" Speaker Spacer;Material : Hard Plastic Depth : 11mm / 0.43";Inner Diameter : 91mm / 3.58" External Diameter : 135mm / 5.3";Color : Black Weight : 56g Package Content : 2 Pcs x Car Speaker Spacers