3D Bracket,20 PCS Silicone 3D Inner Support Brackets for Masks Another option for children and adults, the Silicone 3D Inner Support Brackets for Masks ($14 for a pack of 20) include 10 brackets for kids, and 10 brackets for adults. You'll love the soft, lightweight, safe and washable silicone, and kids will love how comfortable they are. Image Source: amazon.com Silicone 3D Inner Support Brackets for Masks $14 from amazon.com Buy Now