Description Fits any prism pole with 5/8″-11 stud. We designed the PPMA-03 to use readily available, inexpensive, disposable office supply type permanent markers (2 included). The PPMA-03 is designed to hold up to 9 LBS with out marking unintentionally. This is enough to support a typical* 8’ prism pole, 360° Robotic Prism and Data collector. Not recommended for use with Valve Action markers. Pressing the tip of a valve action marker causes ink to flow which would cause excessive ink discharge. *Some Layout pole assemblies may exceed 9lbs. Contact us for more information. Please provide the static weight of your assembly when calling.