The Agen baking mats by Gefu in black are reusable mats that can be used up to 1,000 times. Interestingly:

2 pieces are included in the set.

Made of fibreglass and Teflon, which has high temperature resistance and non-stick properties.

They are resistant to temperatures from -70°C to +260°C.

They can be used on both sides and can be cut to any size.

They are not suitable as a cutting surface.