Based on this product's specifications, here are some alternatives and similar models
Thermal Binding Covers GBC LeatherGrain 1.5mm White A4
Summary description:
GBC LeatherGrain Thermal Binding Covers are designed for A4 documents. Made from durable PVC, these 1.5mm thick covers provide a professional finish. The transparent and white design enhances the appearance of your documents while ensuring protection. Each pack contains 100 covers, perfect for bulk binding needs.