6"x9" Flush Mount MDF Speaker Rings (2 Rings) The inside is recessed down .3" at a diameter to mount the speaker in at 7 5/8" X 10 7/16 Inches. Plenty of room for odd sized ones here. These are 11 1/4" X 8 7/16" outside Diameter Top Quality Speaker Rings are the best you can get and will ship FAST! These are great for flush mounting your 6X9 Speakers Perfect for Speaker Enclosures (Fiberglass or Wood), Use them as a Spacer, Air and Sound Openings, or just use them to Mod Your Box!