Super-Bands™ polyurethane ring 2-1/2 inch yellow
Ships from US and is sold by Marco Specialties$4.50
Super-Bands™ polyurethane O-ring, standard 2-1/2 inch Inner
Diameter, yellow gloss.
Inner diameter is 2.5 inches (63.5mm) and the cross sectional
diameter is standard 3/16 inch (4.7mm).