Sizing 3.54"x1.77". These mini pop keychain sets are made of high-quality and safe silicone materials. They are excellent in craftsmanship, durable and can be reused indefinitely. It is suitable for any age, adults can release pressure with the fidget toy keychain, Children can exercise their brains too. It is also fashionable for Teens Birthday gifts, Halloween, Christmas, Children's day novelty gifts, Easter basket, office toys and more! It is also suitable for children's party!