The belt is entirely plastic, as expected. It seems solid, and although sooooo long, it can be cut easily (advantage of the material). It is therefore perfectly suited for travel, for example, if it was not affected ... EPOUVANTABLE a sweet smell strawberry !!! It's just an infection: it smells a whole room! I tried to wash it with water, dishwashing liquid, vinegar, to no avail: it seems to have a deodorant. Conclusion: perfect product to deodorize the toilet, for example. I am extremely disappointed.