This number tracker comes unassembled and as a 5 set. Assembly is intuitive, all pieces snap together. Please make sure the numbers are facing the right direction before snapping in the end pieces, it may be difficult to un-assemble. If you need to take it apart, try to wiggle the end piece side to side instead of trying to pull it straight out, it should come loose. You can link the pieces together to create a dashboard. To keep track of values, you can write on standard sized business cards and put in the paper slot.