The model consists of pregnancy during embryogenesis one, two, three, four , five, six , seven months and five months of embryonic twins and other eight models , of which four, five , six, seven months and five months of embryonic twins model fetus can be removed , and displays the uterus, vagina , fetus , umbilical cord , placenta, amniotic cavity and ovaries, fallopian tubes and other structures, each model has structural indicator . Mounted on base with stand Size: 1st month 8 x 11 x 9cm, 2nd month 9 x 11 x 8cm, 3rd month 9 x 10.5 x 8cm, 4th month 13.5 x 15 x 6cm, 5th month 16.5 x 12.54 x 7cm, 6th month 14.5 x 16 x 6.5cm, 7th month 25 x 14 x 8.5cm, 5th month (twins) 20.5 x 15.5 x 8.5cm Weight approx. 2000g