The lillebaby COMPLETE Baby Carriers padded Waist Belt Extension extends the circumference of the waist belt of the lillebaby COMPLETE baby carriers by 9″. 1. Run “male” Waist Belt Buckle through the Extension Strap elastic safety band and connect with Extension Strap female buckle. You will hear it “click” when safely engaged. 2. Pull remaining Waist Belt webbing strap through the elastic safety band. Leave 1-2″ of the nylon strap to allow for adjustments. 3. Follow carrier instructions for using your lillebaby COMPLETE baby carrier.