Type B, the design for British Army training establishments has 9 different obstacles. Most obstacles are built with 3 levels of difficulty: the vault has heights of 1.2m, 1.5m, and 2m; the high wall has heights of 2.1m, 2.5m and 3m; this allows the recruit to progress form easier to more challenging versions of the same obstacle as they progress through their training. The design also includes ramps; ditches wet and dry; ropes and ladders to climb up 4.8m and then cross 7.3m; and a 5m long maze. The maze is one of the newer obstacles.