Really Useful Boxes are ideal for all your storing and organizing needs.  Really useful features: Positively stacks with or without the lids. Minimal wall taper to maximise storage capacity. Totally flat and reinforced bottom. Locking mechanism to prevent the lid separating from the base. Transparent feature allows you to see the contents. You can mix and match different colors for base, lid and handles. Ergonomically designed. Interstacking of the different capacity boxes Length x Lenght: 42x35cm