Based on this product's specifications, here are some alternatives and similar models
Folder binding accessory Fellowes 5349002 — plastic, white, 300 mm width, max 280-sheet capacity
Summary description:
Fellowes 5349002 is a plastic folder binding accessory in white with a width of 300 mm and a maximum capacity of 280 sheets. Lightweight (20 g), it is designed to assist in binding or securing stacked paper within compatible filing or binding systems. Suitable for office use where quick, space-saving document binding and organization are required.