Based on this product's specifications, here are some alternatives and similar models
Milan self-hardening modeling clay 400 g white
Summary description:
Self-hardening modeling clay Milan, 400 g, white. Air-drying polymer clay suitable for sculpting, modelling and craft projects; hardens at room temperature without baking. Smooth texture for fine detail, can be sanded and painted after curing. Ideal for hobbyists, school crafts, prototyping small models and decorative items.