Description Made of , it has anti-wrinkle and non-sticky effects. It is especially useful for masks that are too small, please keep them safer. Comfortable and flexible, it reduces the pressure on the ear straps. When eating, a convenient extension cord can secure the mask. Adjustable lanyard design, you can adjust the length to fit your head perfectly. Features Material: Dacron ( flexible ) Color: Black. Size: About 7.07X0.39X0.04inch 18.00X1.00X0.10cm. Strap holder sizes: elastic bra strap clips are approx. 18 cm in length and 1 cm in 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 Adjustable 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 straps 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 - Color: Buckle Insert. Package Including 5 x buckle extension ropes 5 x insert extension ropes Strap holder sizes: elastic bra strap clips are approx. 18 cm in length and 1 cm in 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 Adjustable 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 straps EXCEART 10 Pcs Bra Strap Clips Bandanas Lanyard Clips Extension Strap Non Slip Strap with Clasps Underwear Holder Buckle and Insert