These Flexi-Cut Cups look and feel unusual. They are made from a flexible plastic material that enables the user to change the shape of the lip by altering the tightness of his or her grip, and they have a very obvious cut-out section at one edge that means that the cup can be tilted higher than normal cups. This means that drinks can be taken without having to tilt the head back, which can be an important consideration for those with limited mobility in the head and neck. They are sold in packs of 5 and the pink colour denotes the smaller, 1 fluid ounce capacity. Flexi-Cut Cups, Pack of 5 Colour: Pink Capacity: 28.5ml (1 fluid ounce) Top rack, dishwasher safe