excellent! quickly come! and a very high quality product)
Crap quality. The tubing is kinked and crushed in multiple places all over it's length. The kinks have melted together so badly that the tube is no longer a tube. Even stretching the tube doesn't help. You have to cut away all these welded kinks in order to find a usable section. Also the tubes are not even close to 1 meter in legth. Most of them are between 80 and 90 centimeters. That means that in each tube there is 10-20% less material than what was purchased.