This is an ingenious revolutionary idea by FixIts that is straight forward and simple to use. Heat it, dunk, remove it, that is how easy they are. You first place these biodegradable plastic sticks into hot water that is 60 Celsius or 140 Fahrenheit for roughly 60 seconds so they are soft and malleable, take it out and pinch off what you need and you can get fixing. Every FixIts stick can be mouled and shaped in to any form in seconds, they harden as they cool giving you plenty of time. Once they are hardened they are incredible tough and resistant as they are made to last. To cut them to size you can drill, hammer or sand them down, and any leftovers cab be squished together to be saved for another time or blend them with new colours to form new hues or patterns. If you make a mistake while moulding or you changed your mind it\'s easy, just reheat them to start again. These sticks are made from a biodegradable plastic that are compliant with European Regulation EN14995, which means if you ever get tired of reusing your FixIts they can easily be composted by throwing it in a home food waste or at a local garden recycling centre. - Brand: FixIts - Material: Bioplastic - Colour: Black - Heat in hot water for 60 seconds, take it out and mould it to your desired shape. - Can be reheated and reused - Perfect for bike, phone and watch repairs plus anything else you can think of