Specifications: Product Type: Unlock Key Toys Material: Wooden Lock Size: 8.3*6.3cm Key Size: 6.5cm Notes: 1. Please allow slight deviation due to manual measurement. 2. There may be slight chromatic aberration due to the difference between different lights and monitors, please understand. Package Including: 10 x Locks 10 x Keys Novel Digital Learning ToysThis digital learning toy allows children to complete the cognition and learning of numbers in a brand-new way by finding the matching key to successfully unlock the lock and gains a sense of accomplishment Skill DevelopmentEvery lock has a matching key, and the lock and key have corresponding numbers and points. This digital unlocking game can stimulate children's sense of challenge and develop their hands-on skills, promote enhance fine motor skills, color perception and classification capabilities Safe Play for KidsThe 360-degree design with smooth rounded corners without thorns, the key lock toy caring for the child's delicate hands, allowing children to play with more confidence Ideal Parent-Child GameGreat way to learn number skills while having loads of fun. When children and parents concentrate on the game, it becomes an excellent interactive game that promotes the connection between them. Funny ToyToys are fun and can keep your child addicted for hours. It's perfect for all kinds of occasions, parties, birthdays, holidays, Christmas and so on, and it can play with multiple children to increase their interaction