Kids Learning Locks, Numbers Sorting Matching Locks, Children can start a lock-opening game at any time. Whoever can open the lock quickly will win. Children like to imitate adults to open the locks. We designed child sized lightweight lock with colorful looks. The beautiful pattern can attract tots to open them, have fun of unlocking, learning counting and number matching. Unlocking games can effectively inspire people's thinking, train their thinking, judgment and patience Package Includes: A set includes 10 numbered locks with 10 keys. The locks correspond to the keys one by one, with dots on one side equal to the numbers on the other. Product Size: Keys Size: 7. 3 x 3 cm/ 2. 9 x 1. 2 inches Locks Size: 8 x 6. 5 x 2. 7 cm/ 3. 2 x 2. 5 x 1. 1 inches Safe Material The digital locks and keys are made of non-toxic PP materials and without sharp burrs. And they are brightly color, which can attract children's attention and get them to put down their phones and immerse themselves in the game. Develop Basic Skills The digital locks are improves observation, logical thinking, hands-on ability, hand-eye coordination and fine motor skills, problem solving, shape recognition, memory, and task completion. And enhances mathematics and counting skills. New Digital Learning Toy Unlike traditional number learning toys, this digits lock toy allows your child to successfully unlock the locks by finding matching keys, completing the knowledge and learning of numbers in a whole new way. Security Tool Besides being a fun toy, these delightful locks can also be used as security tools for children's personal belongings.