So my new maternity bras are 2-1/4 inch back strap BUT 4 hooks. I spent 3 hours online trying to find that combination without luck. So I figure this might work and it does. Since it it he same width than my bra it doesn't warp and I just attach the two exterior hooks and one inside. I have used this for a month now, washed it several times, and am still happy with it. I even have a little more room if I am getting any bigger. Since I am carrying twins I had to nicest in maternity bra early in the pregnancy, and while I did buy them little big I did not know I would get bigger than one size up. This saves me $100s getting new bras.