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 handle of the cup lid has an additional silicone cushion to protect your fingers from being cut. 3. The straw is made of soft PE material to ensure that it will not break after long-term use. 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 packages of 2 packs, 4 packs and 8 packs. Let you one purchase to meet the needs of the whole family. 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. 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 lid is made of Safe material that does not contain BPA and phthalate. Powder coatin