Another thing I would note about these types of leashes, however, is that they really vary in quality. I have bought really cheap retractable leashes, and the plastic housing always falls apart pretty soon after I buy them. Also, they do have problems with jamming and tearing. After buying a couple of cheaper leashes, I bought a more expensive retractable leash and it works much better. I have had that one for almost a year now, and it doesn’t have any of the problems that the others did.
I think especially for people looking for a large dog leash, buying a leash that is a bit more expensive will save a lot of money in the long run. They are usually not that much more costly, and they are of a much higher quality than the cheap leashes.