Strap holder sizes: elastic bra strap clips are approx 21 cm in length and 1 cm in width, clips are approx. 1.6 cm in inner width, so it can suit bra straps within this width^ Non-slip bra holders: these bra strap holders can connect both of your bra shoulder straps from the back thus to keep them connected and prevent them from slipping off,clips on your bikini top for a sexier look^ Adjustable elastic straps: these bra strap holders are adjustable, so you can adjust they length according to the distance between 2 shoulder straps.Provides additional lift and support to give the appearance of a fuller bust line. The ergonomic design relieves discomfort and keeps those pesky bra straps from digging into your shoulders.^ Wide applications: you can apply one or more bra strap holders according to your needs, suitable for doing sports, running, climbing, exercising and other strenuous exercises.^ Quantity: 6 pieces(3 colors x 2 pieces of bra strap holders); Colors: beige, white and black, these three colors can match with most of your bras, good as replacements for bra strap holders