Based on this product's specifications, here are some alternatives and similar models
Brake pads Clarks for Magura Marta 2002–2008, Marta SL, EXO, Skeletal — model CLA-VX815
Summary description:
Replacement Clarks brake pads compatible with Magura hydraulic rim brakes Marta (2002–2008), Marta SL, EXO and Skeletal models. Supplied as model CLA-VX815 (MPN). Designed for direct fit to listed Magura calipers to restore braking performance and pad wear. Intended for bicycle maintenance and repair, suitable for road and city bikes using these Magura systems.