Husky Liners Under Seat Storage Box Fits 99-07 Silverado/Sierra 1500 Extended Fits Extended Cab models only. Does not fit 2007 New Body Style. Large storage capacity Tough & durable material resistant to most chemicals while providing an anti-skid surface that minimizes cargo shifting The sleek black texture gives your GearBox a factory look and feel No Hassle Lifetime Guarantee and Made in the USA