The 600ct 3D Scanning Markers by Revopoint are small, reflective dots designed for use with 3D scanners. These markers, measuring 6.0mm in diameter, are ideal for capturing detailed scans with precision and accuracy. The compact product dimensions of 0.39 x 0.39 x 0.02 inches make them easy to handle and store, while the unit quantity of 600 ensures that you have an ample supply for multiple scanning projects. These markers are a must-have accessory for anyone looking to enhance the quality and accuracy of their 3D scanning setup.