What is the size ?This is a bolt seals ,It is high security seals complied with ISO17712:2010.The diameter of male and female is more than 18mm. after locking ,The lock pin is fastened into the lock housing. The pin can not be twisted . What is the material ?The metal is A3 steel, the plastic is ABS.How to print ?.Laser engraving.Company Logo/Name.Sequential number .Bar code decoration is also available How to lock ?Put the pin into the lock housing and then clamp them lightly by hands. how to apply ?you can use it to lock the container,train and so on. How much is the tensile strength ?We tested this plastic selas in the general weather,The tensile strength is more than 1750kgs (3858lbs).

