Quantity: 12 pieces(3 colors of bra strap holders and 3 colors of bra clips); Colors: beige, white and black, these three colors can match with most of your brasNon-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 offAdjustable elastic straps: these bra strap holders are adjustable, and they are stretchable, so you can adjust they length according to the distance between 2 shoulder strapsStrap holder sizes: elastic bra strap clips are approx. 18 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 widthWide applications: you can apply one or more bra strap holders according to your needs, suitable for doing sports, running, climbing, exercising and other strenuous exercisesZYSD hopes you to be satisfied with every purchase.