Refill your line trimmer and maximise its cutting performance with the RYOBI 2.4mm Whisper Series Spiral Trimming Line (25m). The aerodynamic spiral shape improves your Line Trimmer’s runtime* and lowers its noise level.** — a feature your neighbours will appreciate. With a reinforced core, this replacement Trimming Line is more durable and less prone to breaking. The high-quality resin also makes the line more resistant to welding within the head of the trimmer. Welding occurs when excess heat is generated inside the trimmer head which causes the line to fuse together. *Runtime based on no load testing using POWERFIT Round Trimming Line as the comparison. Testing was completed on RYOBI R18XLTR30 using 2.4mm trimming line. RYOBI R36XLTR20 using 2.4mm trimming line and 2.7mm trimming line. All testing completed using a RYOBI Speedwinder head. Testing was conducted in August 2022. **Noise level data based on no load testing using POWERFIT Round Trimming Line. Testing was completed on RYOBI R18XLTR30 using 2.4mm trimming line. RYOBI R36XLTR20 using 2.7mm trimming line. Testing was done indoors and conducted in August 2022.