Material: The acetate cake collars are made of quality foodgrade PET. They are soft yet firm, safe for contact with edible layers, durable, and not easily broken. They feature brightness with a clean, transparent texture that blends with any cake design. Clear appearance: The brightness and transparent texture help your cake look more attractive while keeping the sides unobtrusive. Smooth surface and flexibility: The smooth surface preserves neat cake edges without damage, and the material is soft enough to be bent into curved or straight shapes to suit your design. Easy to use and clean: Cut the cake collars and the acetate roll to the needed length. They are easy to clean and simple to operate during assembly and decorating. Practical benefits: Maintains the cake shape during setting, supports delicate fillings, and provides a versatile edge for various cake styles. Compatible with mousse, ganache, and other fillings that benefit from a clean, defined side. Use scenarios: 1) Build tall mousse or cheesecake layers by wrapping the collar around the sides during chilling to keep a straight, crisp edge. 2) Create polished, uniform sides for layered cakes or tarts, serving as a guide for frosting and ganache. 3) Shape decorative edges by bending the collar to form curved or architectural side profiles for a designer finish.