RAM Locking Knob w/ 1/4-20 Brass Hole for B Size Arms (RAM-KNOB3LU) Product Line_Tele-Pole The spring loaded design makes

The spring loaded design makes it easy to insert and remove your tablet

allowing you to remove or transfer your Fishfinder in seconds

Multiple punch outs on the sides and back

RAM products are made in the USA and are back by the renowned NPI Lifetime Warranty

Socket technology allows for multiple adjustment angles and articulation of your tablet

RAM Locking Knob w/ 1/4-20 Brass Hole for B Size Arms (RAM-KNOB3LU) Product Line_Tele-Pole The spring loaded design makesThe RAM KNOB3LU locking knob, includes a brass 1 4" 20 thread, for 1" (B size) socket arms; this allowing you to disengage the screwing of the knob. Once you have set your mount in the location you need, you can lock it in place and feel safe that your mounted device will stay right where you left it. Specs & Features Material: Powder Coated Marine Grade Aluminum Ball Size: 1" Rubber Ball "B" Size Weight: 0. 3 lbs. Note: The "U" in the part number