Comotomo bottles are suitable for moms that solely rely on a bottle but also due to their breast like shape and special mechanism of feeding they are successfully used by breastfeeding moms. (babygearhub.net)
This special mechanism is different from others on the list because they are hidden by the draping fabric of the square shaped chair for a cleaner look and a safer glide. (earlymomentsmatter.org)
@tj1000 PNG is a special mechanism that gives the person zero right to legally challenge it. (politics.stackexchange.com)