Super-Bands™ polyurethane ring 3-1/2 inch red
Ships from US and is sold by Marco Specialties$5.30
Super-Bands™ polyurethane O-ring, standard 3-1/2 inch Inner
Diameter, red gloss.
Inner diameter is 3-1/2 inches (88.9mm) and the cross sectional
diameter is standard 3/16 inch (4.7mm).