The PET LIFE Porta-Gate travel collapsible and adjustable folding dog and cat Gate is the perfect solution for those whom want an easy-to-install and expandable pet gate solution that'll work for various door opening lengths and for those who prefer the non-bulkier and heavier gates commonly available. This unique pet gate easily collapses and rolls up and takes up very little storage space. Both sided poles easily extend and grip onto any door posts or any openings. Simply twist the polls and watch the gate automatically extend and adjust to the proper width settings. When installing always make sure the rubberized grips properly grip the sided surfaces. Features a mesh zippered and polyester entrance door that simply zips open and closed for passage and safety. Short enough to step or walk over and tall enough to prevent smaller dogs and cats from passing through. Both sides of the adjustable poles feature tough rubberized grips that tightly connect to any door sidings or openings from drywall to metal, the poles themselves are composed of heavy-duty metal and built-to-last and hold. User must make sure the metal poles are tightly fastened.