Pipsy Koala Kangaroo Backpack Safety Harness and Rein The child-friendly harness keeps your child safe and close The safety strap adjusts as your child grows The buckle allows easy on-off access allowing it to be used as a regular backpack when the rein is not required 3 Foot long rein allows your little adventurer to move about while still under parent's control Ideal for the outdoors and public places