Ankalaps T-Fix Retractor Thomson model is made of 316 quality stainless steel by our company. Our company gives 5 year warranty against all kinds of manufacturing defects. Parts manufactured as standard are listed below. Parts can be created by selecting the required collector set. In addition to the standard set parts, optional dimensions can be produced. As with all surgical instruments, it is absolutely necessary to perform annual maintenance of the products at regular intervals. Each set has a unique code number. Each set is serviced free of charge once a year for 5 years.