Profile: Dean & Co., U. S. A. offers clamps and hangers. Our magnaclamps consist of two 60 mm magnets with contrasting polarity within a flexible hinge. They hold all kinds of papers, signs and large posters, thereby eliminating damage to surfaces caused by tacks, tapes & nails. The Hang/Ease™ I system for acoustical type ceilings has components such as aluminum telescopic pole, aluminum gripper head, magnetic sign rail and hooks.