i have a Looker 01 by Steelworxx (steelworxx.de/The-Looker-01-111p.html
). It is my fifth device and the first that i can say, it works.
My Looker is partly custom made. The ring size is customized and the ring is hinget to get a perfect fit. The lock is also customised. It is integrated lock and gives better safety.
Because of long penis plug the device is very pull out proof. i have not succeed in pull out yet.
The device is not heave but however remind that you are locked. The daily hygiene is easy to take care and i recommend this device for long period chastity.