Monat Technologies Catalytic Converter Security Etching Kit

Inexpensive good idea to prevent theft of catalytic converter and retrieval if stolen. It is easy to apply, tho is applied to heat shield, which seems easy for a thief to remove, and if applied directly to cc would not be seen to prevent theft. There are also stickers to apply to front windows, which might work if thieves can read and take the time to do so. Nevertheless a good cheep investment as opposed to a cage costing much more.