Round ring expandable from 18 to 36cm in diameter, with straight edges of 4.5cm in height, ideal for assembling desserts. High-end spring stainless steel ring. Perfectly retains its round shape. Simple to use due to a fluid mechanism which lets you quickly change the dimensions. No oxidation when exposed to low temperatures. Sturdy and flexible ring for easy mould release. Minimum leakage from ring. Permanent marking: internal graduations for a fast, easy and accurate change of the ring diameter. Goes in the freezer, deep-freezer, refrigerator, blast chiller, oven. Dishwasher-safe.