Features: 1. DURABLE MATERIAL: The lawn trimmer starter cup is made of iron material, ensuring durability and long-term use. It is resistant to breaking or deformation and can withstand pressure and vibration during operation. 2. EASY TO USE: The lawn trimmer starter cup features a simple design and is easy to replace. It can be quickly installed on the lawn trimmer to assist in starting the engine efficiently. 3. COMPATIBLE: This starter cup is compatible with Stihl FS38, FS40, FS55, FS56RC, FS70, 4140, 190, 2010, and other compatible models. 4. EFFICIENT PROBLEM SOLVING: The lawn trimmer starter cup offers an effective solution for starting issues, enabling quick engine start-up, saving time and effort, and enhancing work efficiency. 5. STABLE AND RELIABLE: Designed and tested for consistent performance, the starter cup delivers stable and reliable operation for a smooth mowing experience. Specification: Item Type: Lawn Trimmer Starter Cup Material: Iron Weight: Approx. 43g / 1.5oz Compatibility: For Stihl FS38, FS40, FS55, FS56RC, FS70, 4140, 190, 2010 Package List: 2 x Lawn Trimmer Starter Cup