This ring from Oxballs is made from their TRP/Silicone blend. The squishy, stretchy material and minimal design creates a super comfortable fit that’ll give you a great bulge without a lot of bulky material. Fill out your underwear, or use it in action. 

Width:  2.5” (6.4 cm)

Height:  1.10” (2.8 cm)

Outside Circumference:  8” (20.3 cm)

Inside Circumference:  4.5” (11.4 cm)

Inside diameter:  1.45” (3.7 cm)