Size: 5.8-7.0mm/ 7.0-8.7mm/ 8.8-10.5mm/ 10.8-13.3mm/ 12.8-15.3mm/ 15.3-18.5mm/17.8-21mm / 90pcs in total, to meet your your daily needs Material: made of made of high quality 304 stainless steel without burr holes. Water resistant corrosion…View more