Pachycereus marginatus cristata
Such a cool cat! I love the dots and lines on these cacti. You will get one of these 3 shown, random selection. These all have some minor cosmetic flaws, basically a little bit of bruising from being imported. These grow really slowly but can get quite large and look like a sculpture. They are easy to care for, just don't give them water too often.
Current batch looks like LAST 2 photos, they are bigger than the previous batch
AKA Marginatocereus marginatus cristata