Bangles by Carla Edwards Inside size 74x54mm. Handmade by Carla in her Edinburgh workshop. Features Primary Material : resin Inside Diameter (mm) : 74 One of a Kind : No Hallmarked : No Cleaning InstructionsClean items gently with warm water and a soft, old toothbrush, a little washing up liquid can be used if needed.Avoid contact with perfume, hair products, abrasive cleaning products etc. To keep pieces in top condition I recommend that items are stored in the box and acid free tissue they arrive in. It is not recommended that pieces are kept next to other jewellery items or in direct sunlight.