351pcs Silicone O-ring Set, 10 Sizes, Oil and Heat Resistant, Suitable for Cars and Pipelines

his 351-piece silicone O-ring kit includes 10 commonly used sizes for household maintenance, appliance repair, and light-duty DIY projects. Made from high-purity silicone, these O-rings offer: 🔥 Heat resistance from -60°C to +230°C (-76°F to 446°F) 💧 Excellent performance in water, steam, and air systems 🔄 Flexible and durable for repeated use 🔧 Typical Uses: Faucet & shower valve repair Coffee machine or humidifier seals Aquarium pumps Non-pressurized air tools ⚠️ Important Limitations: NOT suitable for gasoline, diesel, motor oil, or hydraulic fluid — silicone swells and degrades in petroleum-based oils. Not for automotive fuel, brake, or high-pressure hydraulic systems. For general household use only — not certified for industrial or safety-critical applications