Check the listing for details. RAP-300-1U RAM Power Plate III Universal Magnetic Holder.... Color: Black, Condition: New. Listed at 30.44 USD. RAM Power Plate III Universal Magnetic Holder... RAP-300-1U Genuine RAM Products! The RAM Magnetic Power Plate III is designed to hold various devices including radar detectors and cellphones. The magnetic plate includes two powerful rare earth magnets, a composite cradle, and one adhesive metal plate. To mount your device to the magnet, you will need to attach the metal plate to the back of your device. Includes a rectangular 50mm x 38mm x 0.08mm metal plate with adhesive back.hardware included (1) 50mm x 38mm Steel Adhesive Plate(2) Rare Earth Magnets(4) #6-32 x 1/2 INCHES Machine Screws(4) #6-32 Nylock Nutshole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES plate size 3.13 INCHES x 4 INCHES materials High strength compositepackaging type Poly BagWeight 0.25 lb hardware included (1) 50mm x 38mm Steel Adhesive Plate(2) Rare Earth Magnets(4) #6-32 x 1/2 INCHES Machine Screws(4) #6-32 Nylock Nuts hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES plate size 3.13 INCHES x 4 INCHES materials High strength composite packaging type Poly Bag Weight 0.25 lb