The first tow line has now served its purpose exactly one year now the second ordered. Very stable, nice rubber coating of the loop, which not only prevents injuries to the hands, and the slipping the leash does not come as often as before. If, however, crumbly over time. Weak point is the hook for attaching a leash to the collar, with lively dogs going on the self and dismisses the dog to freedom, which sometimes is not necessarily desirable ... can recommend only double security. After one year, the bolt when hook has completely adopted. The canvas is a little less flexible than other lines, but turned out to be positive, since they so not easily wraps around the dog legs, which prevents injury. With daily use of the leash fray over time, but within the normal range. The last line, incidentally, was just over 13 meters long, the new now just over 14 meters. Despite strong buy recommendation, although still should be working on a better mounting system, as it can be seen in direct comparison with other in Schleppleinen Amazon bought for me as a clear winner.