This premium-quality amp bag allows you to transport your Little Mark head in a knapsack (along with cables, tuner, charts, etc.) and then keep the amp in the bag during use. Ultra-handy for in town gear transport. The Markbass Amp Bag Small fits the following Heads: Little Mark III Little Mark Rocker 500 Little Mark Tube Little Mark Tube 800 Little Mark 800 Little Mark 250 (and Little Mark 250 Black) Little Mark II LMK Little Mark Ninja