Medium Auren:
Height: 7.5 inches
Useable: 6.75 inches
Circumference:
Top swell (single/double): 6.25/9.5 inches
Under swell (single/double): 5.5/8.5 inches
Lower shaft (single/double): 7.5/11.5 inches
**NOTE: This product is made with Near Clear Ecoflex silicone and will therefore discoloration is more obvious (not more likely) than regular cloudy silicone. Please use extra caution to avoid staining with oil based lubes and bodily fluids. Boiling for long periods of time is not recommended.