Check the listing for details. RAM-B-138-UN5U RAM Drill-Down Mount with Spring-Loaded Phone.... Color: Black, Condition: New. Listed at 68.44 USD. RAM Drill-Down Mount with Spring-Loaded Phone... RAM-B-138-UN5U Genuine RAM Products! The RAM universal spring loading clamping cradle includes side clamps with rubber bumpers that adjust accordingly to the width of your device, securing your device in the cradle. The feet at the base of the cradle can pivot and slide, creating an opening for larger devices to be attached. A release button, located on the bottom right side of the cradle, allows for quick release of your device. Also included are two threaded inserts and a set of two nuts/bolts to connect the cradle to any of the RAM compatible mounts. Primary mounting applications for the clamping cradle is in LOW VIBRATION environments including cars, trucks and fleet vehicles. The RAM-B-138-UN5U also includes a medium length B-size arm and a 2.5 INCHES diameter round plate with universal AMPS hole pattern.hardware included Assembly Hardwareholder dimensions Width Range: 1.75 INCHES - 3.5 INCHES socket to socket length 3 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 B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials Marine-grade aluminumHigh strength compositepackaging type Poly BagWeight 0.26 lb hardware included Assembly Hardware holder dimensions Width Range: 1.75 INCHES - 3.5 INCHES socket to socket length 3 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 B Size (1 INCHES ) weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lb materials Marine-grade aluminumHigh strength composite packaging type Poly Bag Weight 0.26 lb