Experience superior bottle cleaning with the NTIERA 2-in-1 bottle brush designed to fit both Stanley and Owala bottles. This innovative tool combines a full-sized bottle scrubber and a hidden straw cleaner brush, seamlessly stored inside the handle—no more misplaced accessories or cluttered drawers. 1.All-in-One Convenience: Featuring a 13.3-inch brush and a 10.1-inch flexible straw cleaner, the NTIERA brush set reaches deep into bottles and tight corners, making it easy to clean even narrow-necked water bottles or baby containers. The detachable straw brush is crafted from durable 304 stainless steel for long-term use. 2.Dual-Bristle Power: Designed with soft and stiff bristles, the NTIERA brush tackles both gentle and heavy-duty cleaning. The soft bristles clean without scratching your bottle's surface, while the tough bristles on the tip provide the force needed for scrubbing stubborn residue from protein shakes or smoothies—perfect for those who use baby bottle brush or gym bottles daily. 3.Compact Hanging Storage: Featuring a smart hanging ring and storage hole, this bottle cleaner brush is easy to hang anywhere in your kitchen or bathroom, helping save space and keeping your countertop tidy. 4.Dishwasher-Safe & BPA-Free: Crafted with safe, durable PBT bristles, this brush is not only dishwasher safe but also BPA-free, giving you peace of mind when cleaning baby bottles, water bottle cleaner flasks, or reusable tumblers. 5.Universal Fit: Whether you're cleaning a reusable tumbler, Owala 32oz bottle, Stanley hydration jug, baby bottles, wine decanter, or hummingbird feeder, this brush adapts to nearly all shapes and sizes. It's a must-have for anyone looking to maintain clean, odor-free drinkware. The NTIERA bottle cleaner redefines efficient, hygienic bottle cleaning—built to last and designed to serve.