This is a genuine Ferri TN12150800 ring, specifically designed for various Ferri shredder and mulcher models, including TNE, TNL, TNS, TNH, and TNSL series. Manufactured to OEM specifications, this ring ensures proper fit and reliable operation within the machinery. It features an outer diameter of 30 mm, an inner diameter of 12.5 mm, and a thickness of 15 mm, with a weight of 0.02 kg, making it an essential component for maintaining machinery efficiency.