Dress up yourself or your little one with our fun 100th Day of School Kids' Granny and Grandpa Medical Alert Light Up Necklace prop (23"). This costume accessory is perfect for Halloween, theme parties, historical characters, school plays and projects, theatrical productions, gag gifts, 100th Day celebrations that teach about the importance of the number 100 and respect for our beloved elderly, cosplay and more. One size fits most. Clothing, jewelry, wigs and shoes not included. Other 100th Day and elderly costumes and accessories are sold separately - subject to availability. Battery is included.