My tool trolley had a 1" wide space at the top that held 10 loose sockets of various sizes and types. Being an organized person, I wasn't happy with their chatter, so I found this Ares 9.84" Aluminum Rail with Custom Socket Clips. IDEALLY! Website all I had to do was pay another $2 and get an extra splint with clips. Anyway, I placed 9 1/2" clamps and one 3/8" clamp on this rail which fits all my loose sockets perfectly. A bag of 3/8" clamps wasn't available so that's what I did. The clamps were a bit difficult to wiggle due to tight tolerances, but not bad. Rail - you can slide them easily, but they don't move on their own The sockets are securely fastened to the terminal by the spring ball once fitted and can be easily removed for work if required.Very happy with this product.