High Quality: The bra strap clips are made of high-quality polyester, strong and flexible, and the clasp is made of rubber, smooth and lightweight, so you don't have to worry about it scratching your skin. Adjustable Size: Bra strap holder stop slipping natural length 25cm/9.8in, Extreme extension 30cm/11.8in, clips are approx 1.5 cm in inner width, so it can suit bra straps within this width. Adjustable Design: Elastic bra strap clips are adjustable and stretchable, so you can adjust the length according to the distance between 2 shoulder straps. It can connect both of your bra shoulder straps from the back or front thus keeping them connected and preventing them from slipping off. Comfortable Experience: The bra strap holders discreetly convert any bra easily and comfortably. Improved fit gives the full cup size and creates a fuller and sexier cleavage, and keeps those pesky bra straps from digging into your shoulders, which can avoid uncomfortable problems. Widely Used: Bra straps prevent straps from being visible in t-shirts, tank tops, dresses, workout apparel, racer back tops, and much more, suitable for doing sports, running, climbing, exercising and other strenuous exercises.