material: ABS plastic, optical lens,

product size: 138*50*23MM

carton size: 36.5*32.5*37CM

gross / net weight: 11/9.5KG

The product is used for the identification of instrument structure including the eyepiece, lens, lens, a focusing knob, the barrel is connected with the lower part of the light tube, widely used in medicine, mineral, jewelry, textiles, printing, coins, stamps, precision parts, gardening, etc.