Based on this product's specifications, here are some alternatives and similar models
Binding cover board ARGO CHROMO A4 black 250 g/m² 25 sheets
Summary description:
ARGO CHROMO glossy binding cover board in A4 format, black color, 250 g/m² weight, pack of 25 sheets. Designed for use as covers in binding, report folders, presentations and craft projects. Provides rigid, glossy finish for professional document presentation and protects inner pages from wear and bending.