This simple device allows to you measure your ring size quickly and accurately at home. It measures UK ring sizes from A to Z+9.
 
The ring sizer works like a belt. Simply push the end through the buckle to form a ring shape. Slip the ring sizer on to your finger and adjust to give a comfortable fit, checking that it just slips back over the knuckle.
 
The arrow points to the correct ring size, which is size K in the example shown.
 
Delivery is free for this item - just use the code FREE DELIVERY at checkout.