OREGON CHAIN FOR OPEM CHAINSAW PITCH 73 THICKNESS 1.5 mm Chain adaptable to models: 145 - 150 - 155 - 157 - 157 SUPER - 165 The chain is available in the following links: - 60 links: length 40 cm - 64 links: length 43 cm - 68 links: length 48 cm OREGON