There are many different types of material used in the construction of potty seat. (checkpregnancy.com)
There are different types of materials used to add the extra weight; for example, some blankets use chain links built right into the interior of the blanket and have padding for comfort. (verywellfamily.com)
During the Design stage, while creating the education strategy, you should have settled on what types of material you will use. (elearningindustry.com)