PRICES MAY VARY. 【Upgraded Cup Lid】After market research,we have upgraded the cup lid.(1)The sliding piece is changed from transparent to black, making it more resistant to dirt.(2)Thickened silicone ring,so that the mug will not overflow even if it is inverted,and the heat preservation effect is more excellent. 【Premium Design】Vacuum Insulated Coffee Mug is made of high quality 18/8 stainless steel,durable and never rust,logo free design is suitable for laser engraving,powder coating process br