2 DIFFERENT SIZES: There are 2 sizes round spacer beads, about 3mm/4mm in diameter, hole: 1~1.5mm,about 600pcs. Different sizes can match up with different projects, enough to meet your needs. MORSE CODE BEAD: Do do you know morse code? That's a letter or code that represents a letter, each character is represented by a sequence. Just use this morse code beads to do the unique jewelry! It will not let you down. 304 STAINLESS STEEL: These beads are made of 304 stainless steel, which is a great affordable alternative to sterling silver and will not fade easily. Great DIY accessories for necklaces, bracelets, and other jewelry making. DIY YOUR JEWELRY: Put them combined with scattered beads free into your favorite necklace, bracelet and another fashion jewelry, also be a great help when mixing small bead spacers with large hole beads. WIDELY USAGE: Beading, jewelry making, art, craft. Perfect addition to your charm bracelet and necklace or other crafts with caprice chain, snake chain and hemp twine, braided fabric strips, fiber cord and other stringing materials.