The roll containers are not just suitable for all thumbs, as they were working very inaccurate. So that we ourselves still have had to lend a hand (as nachfeilen example), so we do not destroy them when assemble directly. In addition comes still the height of the roll containers is indicated by 19cm, which was not the case, unfortunately, as were 19,8cm and thus they did not fit the bed. We went to buy less determined roles, which has again cost money, and they have mounted underneath so we thus arrived at the specified height 19cm. Conclusion: For the money I would have expected a better trotzallem quality and fit.