They are reusable, non-stick, and are pre-cut to fit the base and sides of most standard cake tins. Line baking tins quickly without the messy greasing of tins or cutting of silicone greaseproof paper! What's more, it's dishwasher safe, a brilliant product that our customers love! No need to grease, reusable 100's of times. Reduce Waste, Save Money and Time. No more buying greaseproof or silicone paper!