Check the listing for details. RAP-400-202U RAM Tough-Claw Trolling Motor Stabilizer.... Color: Black, Condition: New. Listed at 89.44 USD. RAM Tough-Claw Trolling Motor Stabilizer... RAP-400-202U Genuine RAM Products! The RAP-400-202U consists of the small Tough-Claw base, double socket arm and round base adapter. The RAM Tough-Claw is the perfect mounting base for quick and easy tool-less installation and removal on round, square, odd shaped rails and bars. The Tough-Claw can be clamped on rails from 0.625 INCHES - 1.14 INCHES outer diameter. The round base adapter contains the industry standard universal AMPS hole pattern, which will connect to a large variety of RAM Mount and third party cradles. The mount is designed with a RAM 1.5 INCHES diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles.clamp range .625 INCHES - 1.14 INCHES diametersocket to socket length 4.66 INCHES hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES 3-Hole 120-Degree: 1.812 INCHES Diameterplate size 2.5 INCHES Diameterball size C Size (1.5 INCHES )weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbsmaterials Marine-grade aluminumHigh strength compositepackaging type Poly BagWeight 1.33 lb clamp range .625 INCHES - 1.14 INCHES diameter socket to socket length 4.66 INCHES hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES 3-Hole 120-Degree: 1.812 INCHES Diameter plate size 2.5 INCHES Diameter ball size C Size (1.5 INCHES ) weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbs materials Marine-grade aluminumHigh strength composite packaging type Poly Bag Weight 1.33 lb