Inclusion Criteria:  ASA physical status grade I-II, Age between 20-55 years old undergoing minor surgeries under general anaesthesia using LMA  Exclusion Criteria:  patients at Risk of aspiration, Mouth opening ˂ 2.5 cm, BMI ≥ 35 kg/m2, dental problems, recent history of upper airway infection, gastro-oesophageal reflux disease and limited extension of the neck.