Nursing Bra Clips that are specifically designed for nursing bras. The clips are a two part clip. The top piece is attached to the bra at the top of the cup. The bottom piece is attached to the top of the cup that flips down. In a nursing bra, you can simply unclip the cup with the Quick Clip with one hand. Accordingly, the bra opens both sideways and downwards Use on bras, tank tops or sleepwear with straps These strap сlips are made of plastic, which is lightweight, durable and can be used for a long time. SIZE / DIMENSION: 5/8"; 18mm MATERIAL: Plastic Plastic Nursing Bra Strap Clips Our Plastic Nursing Bra Strap Clips are 2 part clips. One end of the clip has a slot for the cup cover, the other end has two slots – one for the strap and one for the sling inside the cup.