Compatible with Ekynox Sx, Freeon, Kalyos, Ketyum, and Wizaard.
***Will also fit Rydon/ Rydon II models with original metal bridge piece purchased prior to 2019.
I have an older pair of Ekynox SX's and had no issues with installing them and they're super comfortable... just like new!
Great product. Glad I could replacement parts for my old rydons