The price listed is for twenty brass settings. These measure approximately 7.5mm in length and width. These settings are for 39ss stones (8.164-8.412mm) but will also fit 38ss(7.927-8.164mm) and 40ss (8.412-8.672mm) point back round stones. These have scalloped walls with four prongs. Some of these have darkened over time and may need to be cleaned/polished. These are shaped like rhinestone chain settings, however they do not have the holes in them.