Reflective Passive Markers

M3 & M4 and Snap-On Marker Bases
The rigid plastic marker base is injection molded with 14% glass filled nylon, for strength and durability in any application

Base sizes include:

  • 9 mm × 5 mm
  • 15 mm × 5 mm
  • 15 mm × 15 mm
  • 20 mm × 5 mm
  • 20 mm × 30 mm


Aluminum M4 threaded marker posts, offered in four lengths to prevent occlusion in various applications and use cases.
Compatible with M4 markers. Includes a user removable M4 .7 × 10 mm set screw to convert the marker post into a male/female extension. Use a 2 mm or 5/64" hex key to remove the set screw.

Marker sizes include:

  • 6.4 mm (1/4") M3 Markers
  • 7.9 mm (5/16") M3 Markers
  • 9.5 mm (3/8") M3 Markers
  • 9.5 mm (3/8") M4 Markers
  • 12.7 mm (1/2") M3 Markers
  • 12.7 mm (1/2") M4 Markers
  • 14 mm (9/16") M4 Markers
  • 15.9 mm (5/8") M4 Markers
  • 19 mm (3/4") M4 Markers



Acrylic Adhesive
Fair initial adhesion with gradual buildup to excellent adhesion over time. Excellent temperature and UV resistance.

Rubber Adhesive
High initial adhesion that holds steady over time. Moderate temperature and UV resistance.