The OEM Husqvarna Chain Brake Main Spring is specifically designed for models 394 and 395 chainsaws. This high-quality spring is essential for maintaining the chain brake system on your 2-stroke gasoline-powered chainsaw. With a pack containing one spring, this genuine Husqvarna product ensures compatibility and reliability for your outdoor power equipment needs. Perfect for those looking to replace or upgrade their chainsaw's main spring, this product is a critical component for optimal performance and safety in yard, garden, and outdoor living environments.