I have used several of these in different sizes. They all perform well. The aluminium front is covered to protect it and allows for marking out easily for hole drilling. The plastic sides and back are firm enough yet easy to drill or cut into for a range of hole sizes and shapes. The base of these boxes is removable and secured with 4 screws in the smaller boxes and 6 screws with the larger boxes. If the boxes are to be mounted vertically they adhere well to baseboards using contact adhesive. otherwise small rubber feet are provided to allow them to sit on a desk. You can see how I used them at: http://bpodmore.co.uk/Projects/Constructing_the%20_control_panels.htm
