Entraining for tongue muscle training, mint green design with a transparent case. - Model Name: Entraining - Color: Mint Green - Usage: For tongue muscle training - Accessories: Instruction manual - Case: Comes in a transparent case Thank you for viewing. It has been heat-sterilized as a precaution. Please refrain from purchasing if you are concerned, as it has been stored at home. It will be sent via the simplest and cheapest shipping method.