Fine-Thornton Swivel Fixation Ring , blunt teeth , SSC-E12113

AISI 304 Stainless Steel Used, Auto clave and sterilizable.

http://simrix.com/product_info.php/fine-thornton-swivel-fixation-ring-blunt-teeth-p-66?osCsid=202a6032cba6464831874862a18ef511 

Fine-Thornton Swivel Fixation Ring , blunt teeth

Features marks in 15degree increments as guide for placement of limbal relaxing incisions.

A : 13mm diameter for clear cornea incisions

B : 16mm diameter for scleral tunnel incisions