【Multiple Sizes & Durable Design】12-Piece Set with 3 Lengths (7.8/9.8/12 Inch) & 6 Diameters (0.19-1.18 Inch) – Perfectly fits narrow straws of Stanley, Yeti, Hydro Flask, Tervis, and thick pipes up to 1.18-inch. Flexible nylon bristles clean thoroughly without scratching surfaces, unlike cheap chenille cleaners that shed fuzz. 【Food-Grade Safety & Dishwasher Safe】Food-Grade 18-10 Stainless Steel & Soft Nylon Bristles – BPA-free materials ensure safe cleaning for baby bottles, sippy cups, and drinkware. Top-rack dishwasher safe for effortless sanitizing, maintaining brush durability and functionality through repeated use. 【Effortless Deep Cleaning】Rotate & Remove in Seconds – Simply insert the brush into straws, tubes, or pipes, gently rotate to dislodge residue, and rinse. Extra-long handles (up to 12-inch) reach hidden buildup in bongs, coffee pots, sink drains, and hummingbird feeders. 【Heavy-Duty & Multipurpose】Beyond Straws: Clean Hookahs, Pet Fountains, Weed Pipes & Tight Corners – Reinforced steel core withstands bending, while tapered tips scrub curved surfaces. Ideal for reusable straw owners, homebrewers, and smokers seeking a non-abrasive tool. 【Risk-Free Satisfaction Guarantee】100% Quality Promise – Brand-new, rigorously tested brushes backed by a hassle-free warranty. Contact us for instant support if any issues arise – your feedback shapes our improvements! KUTO 12 Pcs Straw Cleaner Brush Kit with Nylon Bristles - Extra Long Pipe Cleaners for Tumbler, Water Bottle, Sippy Cup, Tubes & Hummingbird Feeders - 5 Different Diameters