Patent ID: 7416771

Claim:
A floor mat comprising: a mat frame comprising a central portion having a plurality of integrally formed upwardly-extending hooked nibs spaced-apart from each other at least about ¼ inch to about 1 inch across substantially an entire top surface of said mat frame, a peripheral edge disposed around said central portion, a plurality of integrally formed downwardly-depending nibs spaced-apart from each other at least about ¼ inch to about 1 inch across substantially an entire bottom surface of said mat frame, and said upwardly-extending nibs comprise a height and said downwardly-depending nibs comprise a depth and wherein said height is less than said depth; a releasably attachable mat insert having a hook-retaining material extending across substantially an entire bottom surface of said releasably attachable mat insert; and wherein said plurality of upwardly-extending hooked nibs of said mat frame is releasably engageable with said hook-retaining material of said mat insert.