15MM RETICLE CONTAINING A METAL RING. THE RETICLE IS A CLEAR CIRCULAR INSERT WITH A MEASUREMENT SCALE INSCRIBED ON IT. IT CONTAINS A METAL RING AROUND THE PERIMETER. THE RETICLE SITS RIGHT AT THE FOCAL PLANE INSIDE THE EYEPIECE LENS OF A MICROSCOPE AND ALLOWS THE INVESTIGATOR TO MAKE MEASUREMENTS OF SPECIMENS

GIR 1&6 TEXT TO CN 9011, 9011 90, 9011 90 90 NOTE 2 (b) TO CHAPTER 90