HMPSA for couple uses hot-melt pressure-sensitive adhesive as adhesive.
When using, first dry the oil and water on the surface of the object, and then press it with force against the surface of the object.
After five minutes, you can hang the object. There are also two pieces of spare glue in the product package.
If you want to change the place of the adhesive hook, first cut it with a knife close to the back of the adhesive hook, and then use a lighter to melt the prepared glue particles on the back of the adhesive hook and stick it to any position you want to stick.