Four Wheel Walker Rollator with Fold Up Removable Back Support, BlueProduct details The Four Wheel Rollator Walker comes complete with a padded backrest which is hinged and is removable by folding it either up or down. It also arrives with comfortable seating along with a convenient carrying basket which you can use to store personal items. The 7. 5 inch non marring wheel casters are ideal for both indoor and outdoor use, as are the easy to use deluxe loop locks. But that's not all; you also get ergonomic handles that