Today I have tried them for the first time. The things is built very sturdy, all threads are the perfect match and the two peaks are sufficiently long and also of very good quality. For this, a package in which I can store all the items clean and tidy in the closet. If I am to be quite honest, the syringe too low for the high quality. When times were only everything would be sold on the net as well. Thanks for 1 A with asterisk ......... now just have to succeed in the frying :-)