A lightweight, orthopedic device is provided for a person with a hand or wrist dysfunction. The device is molded to fit over the person's hand and, optionally, the forearm. Two half shells form a clam shell, which are hinged together. The wearer can put the device on with one hand, using a strap with a refastenable closing system to hold the device onto the hand and forearm. Posts embedded in the device hold the ends of implements. A novel double-ended quick release coupling, which can provide angled connections, has two ends, one for coupling with the post and one for coupling with the end of an implement.