The Precision Pet 6-Bar Universal Vehicle Pet Barrier has it all. No need to buy extra extension bars. The width is adjustable from 38.5 to 69.5 in. and the height is adjustable to 36 to 57 in. The rung spacing is 3.5 in.. It installs in minutes with just twist lock adjusters and thumb screws. This durable barrier is constructed of strong tubular steel with a non-glare finish. Made with a rattle free design with soft cups to protect car interior. 1 year manufacturer warranty.