Tony Hawk’s newest merch line is a little more… personal than we’re used to.

The skateboarding legend is selling a new line of custom skateboards – each of which contains Tony Hawk’s actual blood mixed in with the paint.

He even posted a YouTube video of his blood being drawn for the project. It’s part of a collaboration with the canned water company Liquid Death.

Only 100 of the bloody boards will be made, selling for $500 each at Liquid Death’s website.

Part of the money will go towards charity efforts to fight plastic pollution and build skateparks.