... : Power Tack is a versatile, reusable putty-like pressure-sensitive adhesive, commonly used to attach papers to walls or other surfaces ... , 100% non-toxic, and it won’t dry out.. Reusable adhesive.It can be used to mount Maps, Posters, Charts, Calendars ... gms,75 gms or 100 gms. Blue Power Tack Reusable Adhesive