Tick Twister was invented and designed by a French veterinarian in the 1990’s in two sizes, one for removing very small and small ticks and one for removing medium and large ticks. They are made of injected plastic (polyoxymethylene=POM). This polymer plastic was chosen because it is recyclable, can be incinerated without pollution (no chlorine fumes during combustion) and for its solidity and resistance to ether and most solvents. Tick Twister can be disinfected with regular disinfectants. The smart and safe way to remove ticks from people and pets.