This is an 8pc mini circle cutter double ended set (1 of each size). Each cutter size is:
red: 35x15.5mm, hole: 10mm and 14.5mm
yellow: 29x13mm; hole: 8mm and 12mm
black: 28x9mm; hole: 6mm and 8mm
white: 20x6.5mm; hole: 3.5mm and 6mm
green: 19.5x5mm; hole: 2mm and 4mm
brown: 18x4mm; hole: 1.5mm and 3mm
blue: 16x3.5mm; hole: 1.2mm and 2.9mm
orange: 16x3mm; hole: 1mm and 2.6mm