Features: 1. 100% brand new and high quality. High hardness, good strength, durable. 2. Ideal replacement for the original one. 3. Easy to use and install. 4. Suitable for Partner 350 351 370 371 390 420 replacement. 5. Widely used in agriculture, fishery, animal husbandry, aquaculture, forestry. Specification: Condition:100% Brand New Material: Metal Color: As Pictures Shown Size: Approx.40mm / 1.6 inch, 63mm / 2.5 inch, 73mm / 2.9 inch Package list: 3 * Spring (In different size) Features 100% brand new and high quality: This chainsaw AV spring mount is made with high hardness and good strength, ensuring durability for long-term use. Ideal replacement for the original one: Upgrade your chainsaw with this reliable and efficient AV spring mount, designed to perfectly fit Partner 350, 351, 370, 371, 390, and 420 models. Easy to use and install: With its user-friendly design, this AV spring mount can be easily installed on your chainsaw, allowing for hassle-free operation. Suitable for Partner 350, 351, 370, 371, 390, 420 replacement: This AV spring mount is specifically designed to be compatible with a range of Partner chainsaw models, ensuring a seamless replacement experience. Widely used in agriculture, fishery, animal husbandry, aquaculture, forestry: Whether you're working in agriculture, fishery, animal husbandry, aquaculture, or forestry, this chainsaw AV spring mount is an essential tool for your daily operations.