A 'hack' is a clever solution to an everyday problem. Sugru is a silicone rubber modeling material that sets permanently, empowering you to "hack things better." Sugru comes in sealed, 5-gram foil packets and can be worked in much the same way as modeling clay. It adheres to aluminum, steel, glass, wood, and even some fabrics and plastics. After drying for 24 hours at room temperature, it maintains a hard rubbery texture. Use Sugru to add grip to tools and everyday items, smooth over rough edges, even add non-slip padding to the bottom of electronic device/coffee mugs/anything you want! When it's dry, Sugru is waterproof and dishwasher safe, meaning you can use it on just about anything.