It can be washed easily without a special brush.
39 inch. No need to worry about hygiene anymore* Safe to use: 100% high-quality food-grade silicone.* Sturdy and Durable: Suitable for silicone bowls, milk cups, water cups, etc.1-pack / 3-pack Silicone Openable and Reusable Baby Drinking Straw with Food Grade BPA Free Toddler Food Accessories for Self-Feeding Training Food Gr The length can be freely cut according to needs.