I bought the case about the company siepmann.de. Is priced lower than Amazon. In the beginning I worked with 2 traps without the support that you can also buy it. The disadvantage is that you no bracket per mole or vole min. 2 Fallen needs as per mound wegehen 2 courses. Had no support even after 3 hours success but I wanted per trap catch a hustler. And so I then came up with the bracket. It attached the case simply on the holder and can as per hill where you make only the course of going to the surface the case. Simply practical! Did I even ordered 2 cases during the year and now working with 4 pieces. Result after about a year, 91 moles and voles 7. Ps: Purchases not the original case, oil, over time it stuck trapped and incapacitated. Wish all the success to buy a case :)