This tattoo ink rack is made of powder-coated steel and can fit up to 78 bottles of tattoo ink! The powder coating and steel material makes it extremely durable. It is not flimsy like other plastic ink shelves, and will easily hold the weight of 78 ink bottles. You can place it on any surface or hang it on the wall to display your collection of inks. By using an ink rack, the tattoo ink bottles are placed horizontally, which helps to reduce the separation of pigments when an ink stays unused for a while. You will have to mix them a lot less!