T10 reminds of the common known locks made from punched sheet metal. However the sheet metal parts of this lock are laser cutted and every single of them reworked for high precision. It is the lock with the most moving parts so far. It is recommended to prepare paper and pencil for solving. For notes! Not to manipulate the lock! :-)
It has a key, and is made from brass and stainless steel. The weight is 1000g.