Sferoflex is known for a spring temple invented and patented by Sferoflex glasses in 1941.  

The very name Sferoflex indicates the main feature of these glasses: the flex temple. A special spring mechanism inside the hinge makes the temples flexible and allows the glasses to adapt to the size of every face without causing any annoying constraints, and thus providing an extremely comfortable fit.

Sferoflex is the ideal eyeglasses frame for those who cherish a classic, comfortable style at an affordable price, yet who do not want to give up the highest quality standards.