This is Lego part #3006 2x10 brick in Very Light Bluish Gray

This part in this color is considered a Non-Production Part or Q Element. This means that it is an official Lego part that never appeared in this color in a regular set. These elements are often produced for Master Builder models so that large scale models can have a broad color palette.

We have many non-production Lego parts available for purchase, click to view them all.