HEGAR 185mm 7.1/4" Cervix dilator Set of sixteen consisting of one of each of: 3791 to 3806 2mm, 3mm ,4mm, 5mm, 6mm, 7mm, 8mm, 9mm ,10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 2.5mm, 3.5mm, 4.5mm, 5.5mm, 6.5mm, 7.5mm, 8.5mm, 9.5mm, 10.5mm, 11.5mm, 12.5mm, 13.5mm, 14.5mm, 15.5mm, 16.5mm, 17.5mm