EACH ITEM FITS ONE (1) AIR LOUDSPEAKER OR SUBWOOFER. (PLEASE CHOOSE THE APPROPRIATE ITEM FOR YOUR SPEAKER) OFFERS SOLID PROTECTION WHILE TRANSPORTING. PADDED, SOFT-SHELL DESIGN WITH HANDLES AND SHOULDER STRAPS FOR EASY TRANSPORT. (SHOULDER STRAPS ONLY ONAIR10, AIR12, AIR15 TOTES) WEATHER-RESISTANT, HEAVY-DUTY NYLON/CORDURA MATERIAL.