Compatible with Valentine One V1 Gen1 Radar Laser Detector, Not suitable for models not listed ^^ Rearview mirror radar bracket is made of all aluminum alloy, Has excellent stability and lifespan. Say goodbye to fragile plastic brackets ^^ The adjustable design of the bracket base allows for flexible use and adjust the required angle as neeeded ^^ Please ensure that the length of the rearview mirror lever arm is greater than or equal to 0.4 inches ^^ Installing our radar detector holder can firmly grip the rearview mirror and maintain stability while driving. It is the perfect accessory for radar detectors