1) metal cover 2) size: 211 3) inner diameter: 65mm 4) suitable for car oil, engin oil, lubricant 5) partial open or pouring Description:easy open end used for Oil Treatment packingMaterial:aluminumSize:211# (73mm) or 401# (99mm)Inner Diameter:73mm for 211, 99mm for 401Thickness0.235mm EOE Packing:2000 or 3000pcs per carton 211 lid for car oil treatment, lubricant packing