1.5 inch Rigid Non Swivel Caster Wheels Casters Set of 6 Heavy Duty Fixed Plate Casters Wheels Hard Rubber Caster Wheel for Furniture and Workbench: Amazon.com: Industrial & Scientific
Amazon.com: Daystar, Universal polyurethane bump stop 4-1/2" tall 4-1/2" long 2-1/2" wide single stud mount competition style polyurethane bump stop, KU09009BK, Made in America, Black : Automotive