1. Professional 3in1 CleaningCombines rustproof stainless steel spring with soft nylon bristles for double cleaning effect: the flexible spiral releases blockages, while the rotating bristles gently remove residue, for delicate refrigerator drains and car water drainage. 2. stainless steel construction: with 1.2 mm reinforced spring thickness, our brush withstands 3x longer than standard models. The specially hardened stainless steel alloy prevents corrosion in moisture, ideal for continuous use in the kitchen and workshop. 3. Tailored 150 cm length: Thanks to the precisely calculated length, you can easily reach deep pipe runs in cooling devices (75120 cm standard depth) and complex curves in car water systems. 4. Intelligent 90° bending capability: the patented woven spring structure allows controlled bending up to 87° without material fatigue. for Ushaped siphon sections and angled air conditioning pipes in vehicles.