20G Nose Hoop with Disk. These are surgical steel hoops that are perfect for noses. They come in 2 diameters. The size you need depends on where your nose happens to be pierced. If the hole is up high, you’ll likely need a larger diameter hoop. If the hole is lower on your nostril, you will likely need a smaller diameter. These hoops should be pinched closed so they don’t fall out. They are put in from the inside, then the disk rests inside the nose.