I ordered 50 ft of this line for my chain saw shop,typical sizes are 1/8"ID 1/4"OD it came in it was huge,so I ordered 1/8"ID 3/16" OD from another supplier thinking I lost my mind. After further examination. I realized this fuel line is twice as thick wall as all they other suppliers, so it really squishes down forcing it threw the fuel tank on a chain saw,I found the right stuff on Amazon 1/16" wall instead if 1/8" or whatever this stuff is,but dang 54.00 down the tubes,so if you're ordering for chain saws know this stuff is way bigger diameter than the other suppliers,I threw some in a 372 I just built to get it out the door to the customer,but soon as the right stuff shows up I'll be pulling it out and replacing it,I'm afraid it might actually pinch closed it's so tight threw the hole