Comprehensive Package: total of 90 replaceable nickel inoculation rings to meet your different needs Easy to Operate: Comfortable handle design, the grip part is flexible and soft, providing a safe and firm grip during use, reducing hand fatigue and enhancing experimental safety Good Stability: Rod is made of copper, chrome-plated surface, with plastic tube, enhances product stability, strong oxidation resistance, high temperature and corrosion resistance Reusable: Loop is made of nickel-chromium, can be quickly cooled after high temperature sterilization, can be reusable Wide Application: Inoculation ring slides along the surface of the AGAR, without cutting or tearing the material, suitable for scientific laboratory and teaching research such as AGAR plate mycology How to choose inoculation loops? plastic inoculation loops: ready to use after unpacking, easy to use, no need for repeated disinfection, save working time and improve experimental efficiency; heat on an alcohol lamp and cannot be reused Nickel-chromium Alloy inoculation loops: high temperature resistance, long service life, can be heated on the alcohol lamp, reusable Colour: As Shown Material: Nickel-Chromium Package Contents: 2 x metal handle(22cm/8.8inch) 40 x 5mm Inoculating rings 50 x 3mm Inoculating rings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.