Excellent quality oozes from every pore of these beauties which weigh in at 452 grams (16 ounces now we have left the EU) a pair.  The stainless steel construction minimises any possible allergic reaction with the prisoner's skin.

They have a triple lever key which can be inserted from either side, the usual Clejuso double locking by way of a push button and perfect engineering.  These score 120/100, a must for every discerning collector..