This is a cyclic shulker box storage that i have made in 1.11 not in any snapshots it use the new pbserver block insted of the old one on the snapshots that many other cyclic shulker box storage use it's very simple to use and build and if you spam rotate the arrow it's also very easy to manually fix if you would like to make it more compact pls tell me on the comments bellow and if you show this on a video pls tell me on the comments bellow also