... suitable for all kinds of pans, woks and pots with various size Model No: T-type tempered glass ... : can withstand drastic temperature change (max. temp. 170o)2) High surface hardness: 5 or 6 times of that ... : 4mm, 5mm7) Color: transparent, blue, green, your logo8) With / without air hole9) Ring material: s/s201, s/s202, s ... paper-boardOuter packing: paper cartons Tempered Glass Lid with bakelite handle