T-Bails are also known as T Rings. Use them to connect fiber rope to spars through a T Terminal backing plate. They are ideal for attaching trapezes and replacing old wire runners and checkstays with lighter-weight, high-tech alternatives. The NT74303 fits the N74003 backing plate and works with 1/16 in. - 1/8 in. (1.5mm - 3.0mm).