Professional instruments reach ultimate accuracy with Bruntons Nonmagnetic Tripod. Nonmagnetic materials ensure zero interference and stability of the easy-to-use tripod. Height adjustable from 19 to 48. Tough aluminum and brass construction with a standard 1/4-20 thread mount. Two-section adjustable legs have pointed feet for nonslip use. Use with Brunton Transit Ball and Socket Mount (sold separately). Wt: 24 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Devices.