NOBILEA Customized Steel Straw Sipper Glass with Extra Lid & Cleaning Brush - 370ml (Silver)Air Tight & Leak proof BPA-free lid is exceptionally airtight, making the product easy to carry, clean, and handle. The airtight bpa-free lid ensures a spill-free experience. PREMIUM MATERIAL - This stainless steel cups / Glass are made of food-grade stainless steel, which has no chemical odor, BPA Free EASY TO CLEAN - The cups are light, easy to clean, and the mugs can be stacked, and the edges of the cups are smut. SAFE TO USE - These tumblers are safe, can withstand multiple falls, and have very good hold feeling with the drink sleeves LEAK PROOF Our toddler sippy cups can easily be carried without spilling any fluids from one area to the other.So the toddler straw cups can provide convenience for parents who without having to worry about cleaning mess or stains for your kids. Polished Surface The polished surface makes the cup more exquisite, and the lip guard design of the cup prevents you from being scratched during drinking or cleaning the cup.