Motorcycle Lock of rear sit for Ducati 1098 1198 848 and another models

I didn't have a rear seat lock on my sb 1098, I could have put another lock on it, but I don't like carrying a lot of keys, so I made a universal one. yes, it opens with any flat object, but it's very rare for someone to touch other people's motorcycles or steal (in my country)
You can use any type of plastic you like.
Lock is work, I use it