CONFIGURATION: SEMI ROUND LINER, ROUND LINER, ROUND LINER TIGHT TAPER SIZE: 6.0MM, 7.00MM NEEDLE DIAMETER: (8/0.25MM), BUGPIN(10/0.3MM),REGULA(14/0.4MM) GROUPING SIZE: FROM 3 TO 7 BOX QUANTITY: 50PCS COLOR: MATERIALS:MEDICAL-GRADE 304 STAINLESS STEEL NEEDLES HYGIENE STANDARD: STERILIZED BY ETHYLENE OXIDE. SUITABILITY: COMPATIBLE WITH CARTRIDGE GRIPS AND MOST BRAND MACHINES ON THE MARKET.