Here is another versatile exercise box for cardio and HIIT exercises. The Titan Fitness Anti-Slip 8 inch Stackable Wooden Plyometric Box can be combined with other boxes to achieve different height. It can be used for box jumps, dips, step ups, and other moves.
Each box is made with 0.7-inch plywood with interlocking puzzle joints. Built-in handles let you easily move these around. This plyo box weighs 22lb.