Koolatron Pants Saver Custom Fit 4 Piece All Weather Car Mat for Select Nissan Altima Models (Grey) Innovative high precision Custom Fit car mats for a perfect fit in your vehicle The mats come ready to fit into your vehicle - no cutting required The only mats on the market which offer 3 security systems that keep the mats firmly in place; the hundreds of micro hooks of the patented "precision grip zone" will firmly secure the mats in place.; the Custom Fit anchor holes for your vehicle firmly fix the mats in place; strategically placed back nibs hold the mats in place A high border around the mats provides maximum anti-spill protection The Pants Saver patented channel groove system directs water to the central pan; the pan holds up to 500 ml of water, dirt and mud