This mat is essential for all your raw edge and other applique needs.
It is made from silicone and is non stick. So your fusible web won't stay stuck to it.
It is heat resistant to 230 degrees celcius so can withstand even the hottest iron.
It is flexible and durable and can be washed clean with warm soapy water.
The silicone surface also means that small bits of fabric won't slip around but can still be easily lifter off when need be.
It is clear enough that you can see through it. Place you layout diagram underneath and then position all your applique pieces and fuse together. You then peel the completed picture off and fuse to your background fabric.
At 16.5 x 11.6 inches, it is also the perfect size, not too big and not too small.
Just remember that you still need to use your ironing board underneath to protect your bench from heat.