Big case of 450mm dia solid polystyrene rings, flat backed. Quality white polystyrene ideal for sweet or candy trees, or can be painted or decorated in numerous other ways. Can also be used as a base for covering in clay, paper mache, etc. Case contains: 15 rings. Do not use solent glues with polystyrene, pva white glue, special poly cement or low heat glue guns are fine. Overall diameter 450mm, the hole in the middle is ??mm.