These are jewelry finidngs crimp beads cover for jewelry making.
We sell 600pcs per box, including 3mm/4mm/5mm, each size both white gold and gold 100pcs
3mm size: about 3 mm in diameter, 2.5 mm wide, hole size is approx 1.3 - 1.5 mm
4mm size: about 4 mm in diameter, 2.5 mm wide, hole size is approx 1.5 - 1.8 mm
5mm size: about 5 mm in diameter, 2.5 mm wide, hole size is approx 1.8 - 2.0 mm