Features:The tinplate lid of the mason cup is new in design and fine in workmanship.Screw cap design, uniform force, built-in sealing ring, strong sealing, not easy to leak.The vertical grain design can effectively increase friction and prevent hand slipping.Specification:Outer Diameter: 73mm / 2.87”Suitable Diameter: 70mm / 2.76”Thickness: 15mm / 0.59”Material: TinplateColor: SilverPackage Content：12 x Mason Jar Lids