Trek-Tech VersaMount/MagMount Bundle Mounting System for Digital Cameras, Spotting Scopes or Other Optical Devices Works with all TrekPods and virtually any tripod Made of high-strength aluminum alloy, extremely strong, yet weighs less than 8 oz. Great for Macro work and nature photography Take pictures from a seated or keeling position or long range observation with large spotting scope Compatible with Trek Tech VersaRest or any industry standard 1/4" - 20 threaded stud device.