This is a really good safety razor to get started with. (primandprep.com)
The padded seats make it more comfortable for your kids and come with good safety features as you would not be concerned about them being tossed around when you are jogging. (babystrollersellect.com)
As for other types of baby carriers in general, apart from choosing the more established brands with good safety record, you should also pay attention to «single points of failure». (babyslingsandcarriers.com)