Freshwater or Sea
Ceramic guide ring (Alconite) insert only
Black, Blue, Rainbow or Gold Coloured
Various Sizes and Quantities
Recommended for ages 14+
How to measure  
The 1st measurement is the outside diameter (OD) of the ceramic ring. (The inside diameter of your existing rod guide frame)
The 2nd measurement is the inside diameter (ID) of the ceramic ring. (The hole that the line passes through)
Please see the picture for assistance. 
Warming the guide frame will help to expand it slightly, making it easier to fit.
To fit you may need glue (NOT SUPPLIED)