Plumbing compression fitting olive / ring to suit old 1-1/4 inch copper pipe (popular before 1972).
Use as a conversion olive inside a 35mm metric compression fitting.
The old British imperial 1-1/4 inch copper pipe measured approx 1.360 inch / 34.54mm outside diameter (1-1/4 inch referred to it's inside diameter).
Only suits the old British imperial pipe (other countries, like Ireland and America are different).
May be supplied in copper or brass, depending on what our supplier sends us.