Precision cleaning made simple with this 10-piece nylon brush set designed for bottles, straws, tubes, and tight spaces. Each brush features high-density nylon bristles wound around a rust-resistant stainless steel core for superior durability and flexibility. The spiral-wound construction maintains its shape through repeated use, delivering consistent cleaning performance. With 10 diameter sizes ranging from 2mm to 24mm and 20cm length, this versatile set tackles reusable straws, water bottles, narrow tubes, nozzles, and precision equipment. The full-contact spiral design reaches inner walls and hard-to-access areas that standard brushes miss. Built to last, these brushes combine strength with flexibility for thorough, reliable cleaning every time. Essential for eco-conscious households and anyone maintaining specialty drinkware and equipment.