Ceramic (bone china) Baby Face Ring
Available sizes (mm): 14, 15, 16, 17, 18, 19, 20 (sizes measured across the internal diameter)
Whilst not indestructible they are durable in order to fulfil their function.
'Bone china is a type of porcelain that is composed of bone ash, feldspathic material and kaolin. It has been defined as 'ware with a translucent body containing a minimum of 30% of phosphate derived from animal bone and calculated calcium phosphate. Developed by English potter Josiah Spode, bone china is known for its high level of whiteness & translucency, and very high mechanical strength and chip resistance. Compared to most porcelain bodies bone china has superior whiteness and translucency. Also, its high strength allows it to be produced in thinner cross-sections than other types of porcelain.'