FEC is an ISO 9001 certified company that sells world class filter testing equipment from their sales office in New Delhi, India. One product they offer is a shoes heel fatigue tester, which is used to test the durability of heels on female high-heeled and middle-heeled shoes. The tester applies a continuous impact to the heel edge at 0.68 Joules per blow, 60 blows per minute, until the heel cracks. Test results provide the heel's withstand index and determine its durable quality.