the present invention comprises a shelf management device that may be used to organize and secure merchandise on a retail shelf . the device can function as either a shelf divider or a fence and is reusable . the device may have a unitary structure preferably fabricated from plastic and requires no hardware or adhesive for installation . it has a unique arrangement of clips or anchors that engage the perforations formed in a shelf . the anchors may include rounded catches that fit into the perforations and engage the underside of the shelf to keep the device in place . the device can engage various shapes of perforations , including round , square , rectangular or diamond .