The Tick Twister removes ticks of any size from animals and people. It's unbreakable and hard-wearing. While removing a tick, it is essential not to compress it, reducing the risk of saliva back-flow. A tick's saliva contains irritating substances and sometimes microorganisms that can lead to infections and/or allergies. Tweezers and other instruments exert a pressure on the tick while the Tick Twister doesn't squeeze the tick's abdomen or leave the tick's rostrum in the skin. Tick Twister enables quick & painless tick removal without the use of chemicals. The pack includes 2 different sizes.