Description How To Use: Step 1: Insert trimmer slightly into nostril by holding the tool with thumb & forefinger. Place the cutting heads approx 1/5 inches into your nostril. (Be sure to clean the area with warm water before use.) Step 2: Squeeze handle to rotate the sharp interior blades, trimming visible hairs only. Maintain rotating movement during cutting to avoid unpleasant pulling. Note 1: It might need some practices to adjust the operation for first uses - the trimmer is designed to trap hairs to cut. Once you're used to it, you will find it a much better tool to use. Note 2: The blades are covered with 12 pcs metal fences, accordingly, it is safe enough to use. Step 3: Clean tool after use with a brush to remove excess hair from in between blades, or directly rinse it with water. Step 4: Dry at a well-ventilated place. Size:The round knife edge 0.65CM, height 4.5CM, width 3CM. Material: Stainless steel Package Includes: 1 x Mini Nose Hair Trimmer