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 NT74307 fits the N74007 backing plate and works with 7/32 in. -9/32 in. (5.5mm - 7.1mm).