It's long and useful for heavy periods and yes it can lasts for 24 hours ,no smell and no normal pad wali odour
It has 6 to 7 layers
1 is upper layer it's made of tissue paper and second it has anion chip which can help to prevent bacteria and helps to reduce stress and promotes healthy sleep during periods.
3 rd it has oxygen layer which helps to control period cramps and the abdomin pain.