The Mini Prism System FDC061-1 is a versatile prism system that comes in a small package. All metal prism assembly is powder coated yellow with black and fluorescent yellow targets. It is also fully compatible with leading manufacturers such as Trimble, Sokkia, Topcon, Leica, Nikon, Pentax. Heavy duty 25mm diameter copper coated prisms for anti-fog, also feature a sloped holder with 0 or -30mm friction axis. Offset: S-hook and brackets for handheld work, and stake points included. Can be mounted to prism poles or triblaches at three heights of 70mm, 100mm or 115mm.