Compatible with Toro Lawn Mower. The model number is 133-4371, please check carefully. The outer circumference is 1679mm, the width is 12.7mm, and the thickness is 8.5mm, with precise size design. Made of wear-resistant materials, resistant to high temperatures and stretch, extending service life and reducing maintenance frequency. Suitable for chain saw hydraulic systems, it has strong stability and can withstand the load of long-term continuous use., Manufacturer: eMagTech