Shore durometer
（重定向自Shore hardness）
![Two inline skates wheels with different durometer - 85A and 83A.](/Images/godic/202502/10/Bont_High_Roller_G4_110mm_85A_and_83A1713.jpg")
![Una cubierta vehicular, uno de los muchos objetos de goma o polímero categorizados por su dureza Shore; típicamente van de 50A a 70A, dependiendo de su aplicación.](/Images/godic/202502/10/Tire_tread1713.jpg")
Durometer is one of several measures of the hardness of a material.
Hardness may be defined as a material's resistance to permanent indentation. The durometer scale was defined by Albert Ferdinand Shore, who developed a device to measure Shore hardness in the 1920s. The term durometer is often used to refer to the measurement as well as the instrument itself. Durometer is typically used as a measure of hardness in polymers, elastomers, and rubbers.