Orthodontic Rubber Bands Target

Where can I buy a rubber band for my controller? 3

I'm out of elastic for treatment and my dentist will be out of elastic for the next week and a half when I go on vacation. This means I could not get a rubber band from my dentist for 3 weeks. This is difficult because I have to use it 24 hours a day, 7 days a week. Does anyone know where I can buy this flexible? Thank you very much!

Round, Walmart

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Orthodontic Rubber Bands Target