The GRANIT 570040917 O-Ring Assortment provides a comprehensive selection of 407 NBR 70 Shore O-rings in 30 common sizes, ranging from 6.07 x 1.78 mm to 44.04 x 3.53 mm. This high-quality assortment is suitable for various sealing applications in agricultural, construction, and industrial machinery, ensuring reliable performance. The O-rings are made from NBR (Nitrile Butadiene Rubber) with a hardness of 70 Shore, offering good resistance to oils, fuels, and hydraulic fluids. The kit comes in a practical plastic case for organized storage and easy access, making it an essential item for maintenance and repair workshops.