CAREFUL CUP LID DESIGN: After market research, we redesigned this cup lid. 1. The thickened version of the waterproof rubber ring is used to make the seal more secure. 2. The bottom of the lid is made of non-metallic material, which ensures that there is no jarring metal noise when the lid is turned. 3. The handle of the lid can be rotated 180°,so that your hands will not be tired when you hold it for a long time. MULTI-PACK & MULTI-COLOR OPTIONS: We provide you with more than 10 colors, including gradient colors and non-painted colors. At the same time, we provide discount packages of 2 packs, 4 packs and 8 packs. The above allows you to have a variety of purchase options. Perfect for that big event coming up such as grand opening, or birthday party. These bottles can also be great party favors, a gift to your favorite client, and more. HIGH QUALITY AND CHEAP: The inner and outer layers of the cup body are made of premium quality 18/8 food grade stainless steel. The l