Based on this product's specifications, here are some alternatives and similar models
KAISER baking ring for desserts and cakes Piccantini — stainless steel adjustable pastry ring
Summary description:
KAISER Piccantini baking ring designed for preparing desserts and cakes. Made for shaping and baking layered pastries, mousses and tarts, it provides a stable form for portioning, assembling and baking. Suitable for professional and home use, compatible with various batter and filling types. Easy to clean and store.