Plastic Multisize Ring Gauge
This plastic multisize ring gauge is ideal for self finger sizing.
Each gauge is packaged individually in an instruction envelope and sizing chart. 
The multisizer works like a belt, forming a ring and then placing over the finger, adjust to give a comfortable fit. Then simply read off the indicated size.
Amber can create jewellery in half sizes. So if you are in between sizes you can order the lower size and a half. 
This multisizer is marked with British Ring Sizes A-Z.