This Mahle plasma-moly ring set lists a 4.110 in bore diameter and 1.5 mm x .151 RW sizing in the product description, presented as a moly ring set for engine rebuild use. The listing describes plasma-moly steel construction and specific bore and ring dimensioning for applications where those measurements are required, making it suitable for precise replacement work.
Mahle Rings Plasma Moly Steel 1.5MM x .151 RW 4.110in Bore Diameter Moly Ring Set