2 Inch ID x 250

They were very helpful, and the quality of merchandise was excellent

Quick ship, good value, part matched the description and worked perfectly.

Received product quickly, was a breeze to program to opener.

Knew from garage door opener install man that I would need this device to interface with the Homelinks system. Was cheaper to buy online and intall myself. It did take clearing the old Homelinks codes in my vehicle before it worked, but now works very well. A little bummed that they dropped the price $5 after I had already bought it.

I received four new puleys from Preferred Doors and installed them on my old 1972 vintage garage door today. It now opens and closes very smoothly and quietly, just like new again!