Snap-in design eliminates the installation labor needed for a screw or a rivet saving assembly time and equipment. Superior mounting approach as the Snap-In Bumper mounts securely into the panel while providing a strong mechanical support to the bumper when used as a mounting foot for electronic enclosures. Superior hold versus adhesive backed or screw/rivet bumpers. Designed to fit snugly into panel and is dust tight. Snap-In Bumpers are skid and scratch resistant and will not mark or stain surfaces. Lock firmly into enclosure. Quick and easy installation. Suitable for metal or plastic panels. Bumper constructed of EPDM rubber. Part Description Key: FSSI XX-YY-ZZ where XX = Overall Height (inches), YY = Mounting Hole Diameter (inches) and ZZ = Maximum Panel Thickness (inches)