Made for Suzuki vehicles. This is for 16cm speakers. Outer diameter: 175mm Inner diameter: 130mm Thickness: 9mm 12mm thickness also available. Can be changed for an additional 50 yen. Please let me know before purchasing if you would like to change. Material is MDF. Stainless steel bolt and nut sets for baffle fixing are also available. Normally 500 yen, but will be included for a total of 1750 yen if purchased as a set. Please let me know if you need them. Simple waterproofing will allow for long-term use. MR Wagon R, H18~ MF33s (front, rear) Every H17 August ~ DA64W / DA17V / DA17W (front) Swift H16 November ~ ZC11s / ZD11s / ZC21s / ZD21s / ZC31s / ZC32s / ZC71s / ZC72s / ZD72s (front, rear) Cervo H18 November ~ HG21s (front, rear) Palette H20 January ~ mk21s (front) Lapin H20 November ~ he22s / he33s (front, rear) Wagon R H15 ~ mh21s / mh22s / mh23s / mh34s / mh44s Solio MA15S / MA26S / MA36S Alto H21~ HA24s / HA24v Alto Turbo RS HA36V / HA36S Ignis FF21S Escudo TDA4W / TDB4W Splash H20 October ~ XB32S Spacia MK32S / MK42S Hustler MR31S / MR41S SX4 H18 July ~ YA11S / YB11S / YA41S / YB41S (front) If you need rear speakers for the front-only models, please inquire separately. Other various baffles can be made. Please feel free to ask anything.