メトラ824400 1月2日スピーカースペーサーリング
価格： ￥4,324
.5IN SPKR RINGS
Gives 1/2" extra depth.Works with most 5-1/4" 6" or 6-1/2" speakers.Speaker Adaptors Universal 1" Plastic Spacer Rings Depth Extender Pair.Tools Required - Phillips screwdriver and Drill.Kit Components - Speaker Spacer Rings.