This is the mixed three. Unfinished structures /ED/ have a tendency to come into sideways trend.
www.wavetrack.com/ne...hree-d3-pattern.html
www.amazon.com/Natur...lliott/dp/1607963140
www.wavetrack.com/ne...hree-d3-pattern.html
www.amazon.com/Natur...lliott/dp/1607963140