OREGON CHAIN FOR PARTNER CHAINSAW PITCH 91 THICKNESS 1.3 mm Chain adaptable to models: P1535 - 1540 - 1640 - 1835 - 1840 - P351 - 352 - 371 - 391 - 538E - 542E The chain is available in the following links: - 45 links: length 30 cm - 50 links: length 35 cm - 56 links: length 40 cm - 60 links: length 45 cm OREGON