There is 2-3% difference according to manual measurement. please check the measurement chart carefully before you buy the item. 1 inch = 2.54 cm Please note that slight color difference should be acceptable due to the light and screen. If you selected (5 Pack), you will get 5 Pieces Knickers; If you selected (3 Pack), you will get 3 Pieces Knickers; If you selected (1 Pack), you will get 1 Pieces Knickers.