Description These reusable inoculating loops feature small size and light weight, easy to control the balance and operate in your experiment operation, providing you with simple use. Inoculation loops and replacement needle tips are made of materials with good stability, heat and corrosion resistance, which can be cleaned at high temperature. A sufficient number of replacement rings can meet the needs of your use for experiment. Features - Color: Assorted color. - Material: Copper. - Size: About 22x0.7x0.7cm/ 8.65x0.28x0.28 inch. - It is also very simple to replace the inoculating loop, whether it is applied in the laboratory or in the classroom. - Made from copper materials which is not only stable but also durable. - The kit with sufficient quantity and model to meet your requirements. - The inoculating rod is made of copper. - The replacement inoculating ring uses premium material for durability and long-lasting use. Packing list24 x inoculation tools