Size chart
Bracelets: NB: 3.5-4in, Baby: 4-4.5in, Toddler: 4.5-5.5in, Child: 5.5-6in, Adult: 6-8in
Necklaces: Baby: 10in, Toddler: 12in, Child: 14in, Adult: 16in. (All necklaces come with an extender!)
I always recommend measuring for bracelets to get the perfect fit!