Material: PVC, black. For easily protection of edges (no reworking of sharp edges required) and for decorating. Mounting: The substructure of the edge trim contains a metal construction. This means they have a strong hold even if there are radii or bent parts. Edge trims are mounted on the edges to be covered by hand or with a plastic mallet. Glues or special mounting parts are not required. Minimum Bending Radii: Please see measures a - d in drawing and table.