Diameter on menu means color

Material: PTFE this is the same material that hospital tubing is made of
Gauge: 14
Curved barbell length: 10mm (3/8 inch)
Ball diameter: 8mm (both of these unscrew)...this size helps with stimulation
All edges are nice and smooth.
Excellent for those that have metal sensitivities or just like the comfort of a piece that is flexible . These are also commonly worn during hospital procedures as well as going through metal detectors :)