Deep sculpted ridges trap up to 2 liters of water, mud, sand and other debris. Non-skid finish keeps objects placed on the mat from sliding from side to side like they do in plastic cargo liners. Scoring lines around the outer edge allow for custom trimming with a standard utility knife giving a near custom fit. Overall mat dimensions are 47" x 34". Cargo mat can be trimmed to get the fit you need. Size ranges from 47" x 34" or trimmable to 36" x 26" Matts4Less