The impact-resistant polycarbonate lid on a sturdy base allows for the secure storage of small parts. The boxes can be customized with inserts and/or dividers and can be securely connected using a locking mechanism. Individual compartmentalization is possible with removable inserts or dividers. The transparent lid seals tightly and prevents the contents from mixing. It can be loaded in combination with other EuroPlus Pro K 44 up to a maximum of 36 kg. The ergonomic folding handle and the innovative locking mechanism ensure secure locking.