The One Hand Box is perfect for anyone with weak hands. The boxes are easy to open with no twisting or turning. To open, simply press on the little spot on the rim of the lid with one finger or the flat of your hand. To reseal the box, simply press the middle of the lid. Set includes 3 boxes: 0,75 L - 1,35 L - 2,00 L. Dishwasher safe.