Check the listing for details. RAM-B-101-L1 Mounting Bracket for Lowrance MB-7, BNIP. Color: Black, Condition: New other (see details). Listed at 30.00 USD. RAM-B-101-L1 Mounting Bracket for Lowrance MB-7, BNIP OVERVIEWThe RAM-B-101-L1 consists of a medium length B-size arm with a 2.5" diameter round plate with universal AMPS hole pattern and a round plate that attaches to the gimble bracket for a Lowrance MB-7 Sonar unit.HARDWARE INCLUDED(1) #10-24 x 3/8" Machine ScrewPRODUCT DIMENSIONSOverall Height: 5"SOCKET TO SOCKET LENGTH3"HOLE PATTERN4-Hole AMPS: 1.181" x 1.496"3-Hole 120-Degree: 1.812" DiameterBALL SIZEB Size (1")WEIGHT CAPACITYStandard Use: 2 lbsHeavy-Duty Use: 1 lbMATERIALSMarine-grade aluminum Description is copied directly from RAM's website, please contact me with any questions. Brand new in original, unopened, manufacturer's packaging.I combine shipping, so please contact me if you want to order more than one item. Leftover stock from closing of marine store. Please be sure this is the item you need before ordering. If you have a question on this item, please contact me before purchasing.Please check out my other listings. More items being added as time allows. Thank you for looking and have a great day.