Solid resin construction Steel core throughout the lower half to improve stability Solid, one piece frame sections Chairs stack up to 8 high Ships fully assembled Each black resin x-back chair features a solid resin construction with one piece frame sections and a steel core throughout the lower half to improve stability. These resin cross back chairs ship fully assembled and are stackable up to 8 high for easy storage and portability. Sometimes referred to as farm chairs, each black resin x back chair makes an ideal complement to elegant banquet halls, wedding event facilities and dining venues.