Kicker 12 KMTAP Mounting Adapter Pack Part Manufacturer: Kicker; Part Number: 12KMTAP; Boat Manufacturer: Larson Boats; Part Number: 2301-2857-SPEAKER-00; UPC: 713034059196 KMTAP adapter pack for Kicker KMTES and KMTED enclosures Kit has the following adapter sizes: (4) 1 5/8", (4) 1 3/4", (4) 1 7/8", (4) 2" Constructed out of black marine grade plastic Sold as seen in pictures; Note every computer shows colors differently; All measurements are approximate; Hardware and instruction/installation manual not included