New Generation Needle Cartridges Certified medical grate roller Finer roller is the new generation medical grate roller with newest research and technology, which is more effective and better than the old type. And certified by ISO13485, Europe medical CE (93/42/EEC), meeting all standards for medical-grade equipment in manufacturing, materials, sterile packaging and more. Safest finer needles (33G) Compare to the general needles with diameter 0.25mm , the new finer needle is made by cone-shape needles with diameter 0.2mm (11 /16 needles), tip sharp between 0.01mm-0.02mm. For 24/36/42 needles, new generation diameter is 0.15mm (thickness)*0.25mm (width), general type is 0.2mm (thickness)*0.3mm (width), made by rectangular pyramid needles, tip sharp between 0.02mm-0.03mm With the new needles manufacture technology, the surface of the needle is much more smoot…