Based on this product's specifications, here are some alternatives and similar models
Cake Ring for Layered Cakes KingHoff KH-1789 14 cm
Summary description:
Cake ring for layered cakes KingHoff KH-1789 with a 14 cm diameter. Designed to shape and assemble multi-layer or stacked cakes, it provides a consistent circular form for baking, setting creams, mousses or layered constructions. Suitable for home bakers and small-scale pastry work when precise diameter control is required.