100% Polypropylene (recyclable plastic #5).
Polypropylene does not contain Bisphenol-A (BPA)
Polypropylene is a non-conductive recycleable plastic that has physical properties that are ideal for our device. It is heat-resistant and has physical properties that allows us to make this entire device in one whole unit, which means we have no small parts that can be of choking hazard.
Polypropylene is also biodigradable and does not generate toxic gases when burned.
It is low density, which means it requires less material and therefore reduces the amount of non-renewable resources used in manufacturing.