... ™ Dual Lock™ Reclosable Fasteners SJ3550, SJ3551 and SJ3552 consist of continuousstrips of polyolefin stems with a mushroom shaped top protruding up from ... , Medical, Point of Purchase Displays, Exhibits, Electronics, Construction, Furniture, Maintenance Repair and Operations (MRO).Attach Doors, Access Panels, Signs, Cushions, Headliners and Display Components ...