SmarTrike Zip Plus tricycle The Zip Plus from SmartTrike is specially designed for babies from ten months to children of approximately three years. Compared to the normal Zip version, the Zip Plus has a more comfortable seat, an extra storage compartment on the push bar and sturdier safety straps. Specifications: Color: red/gray Gender: junior Chassis material: steel Wheel material: plastic, rubber Dimensions: 91.5 x 46 x 99 cm (L x W x H) Suitable for children from 10 to 36 months. Sunshade Rubber wheels Shock absorber Safety support Foldable footrest The three phases are as follows: Phase 1: in the first phase of this model, you as a parent have full control over the tricycle. As a parent, you steer and push the tricycle and your son or daughter sits firmly in the saddle. Phase 2: the second phase is for children of approximately 24 months. In this phase, you still have control over the tricycle, but your son or daughter sits loose on the tricycle. This tests the balance and equilibrium. Phase 3: when reaching the third phase, after about 30 months, you can leave all the freedom to your son or daughter. You dismantle the push bar and give all the freedom to use the tricycle.