Big assortment of flexible and semi-flexible filaments for 3D printing. TPE stands for ThermoPlastic Elastomers and it describes a class of polymers that are flexible. For 3D printing, filaments are generally divided between TPE and TPU, where TPU is less flexible. Because the definition is not widely used in the same manner, it is best to look at the Shore Hardness for information on the actual elasticity and hardness. Using TPE filament you can 3D print flexible objects. With the really rubber like materials you can print wheels for RC cars for example, while the semi-flexible 3D print filament is great for shock absorbers. For more information on printing with TPE filament check out the information page What is TPE?.