RAM Mount Double U-Bolt Base w/D Size 2.25" Ball f/Rails 1.25" - 1.5" Diameter [RAM-D-235-1U] Brand_Davis Instruments a solid glass lens

a solid glass lens

UPC: 753759147020

You can see the difference between bigger and smaller fish and even see individual fish swimming in bait balls

Box Dimensions: 4"H x 4"W x 95"L WT: 13

RAM Mount Double U-Bolt Base w/D Size 2.25" Ball f/Rails 1.25" - 1.5" Diameter [RAM-D-235-1U] Brand_Davis Instruments a solid glass lensDouble U Bolt Base with D Size 2. 25" Ball for Rails from 1. 25" 1. 5" in Diameter The RAM D 235 1U consists of a double u bolt base with 2. 25" diameter ball and two zinc coated u bolts. The double u bolt base will accommodate rails from 1. 25" to 1. 5" in diameter. Features: Material: Powder Coated Marine Grade Aluminum Ball Size: 2. 25" D Size Ball Note: The "U" in the part number reflects product packaged in poly bag. This mount includes zinc