Abstract: An arm brace that includes an attachment for a wire, tube or cable, particularly for use with a hand-held tool, such as an ultrasound transducer. The arm strap or brace supports the cable of the tool, relieving stresses to the wrist and forearm of the user. The arm strap is formed from a length of a limited stretch material and includes a first strap end attachable to a second strap end with a re-attachable strap fastener, the arm strap for encircling the arm of a user with an arm strap tension. A cable tab formed from an elastic material, including a first tab end and a second tab end, the second tab end attached to the arm strap, and the first tab end attachable to the arm strap with a re-attachable tab fastener. A cable loop is formed between the cable tab and the arm strap, and a cable is received within the cable loop. The cable loop secures the cable with a cable tension.