SmarTrike T1 Scooter - Blue SmarTrike T1 Scooter - Blue is an innovative scooter with a detachable cushioned chair. This chair is designed for kids aged 1.5 years and up and has not developed the a ... bility to stand with one foot and push with the others, which is the true scooter. Basically, in the younger age, kids can use smarTrike T1 as their vehicles, not as a scooter and work on their scanning muscles. Since this T1 has a detachable chair for 1.5 years is perfect for training time. The first time using a new scooter can be challenging. Especially at that age, when your toddler just starts learning to walk. This is the perfect time for the T-Lock System to be useful. Appropriate for use since 15 months old. Product information: -Scooter -Detachable cushioned chair -For children age 15 months old and up -T-Lock system