Infinity Ring Splint (US Size) 3-7 Length 27

Parameters of the splint
Thickness 1.9 mm; Length = 27 mm
1Ring size (Narrow) = 3 (US) Diameter 14.05mm 
2Ring size (Wide) = 7 (US) Diameter 17.35 mm
Three Dots indicate the narrow side.
Other available sizes:
Infinity Ring Splint Size (US) 1 1/2 - 2 1/2 Length 21mm
Infinity Ring Splint Size (US) 1 1/2 - 3 1/2 Length 21mm
Description: 
You can use this device as a ring or as functional device for finger joint stabilisation. Please contact me for custom dimensions. I can modify the model according to your dimensions: circumstances, length and any prefered shape.
For customization I require:
1. Your finger size(s). You can give me a ring size No; or diameter in mm.
2. Splint length, mm.
3. Sketch or picture, if available. 
You can also print this splint in precous metal or select durable plastic (low cost material). 
I look forward for your feedback!