The V-Comb™ use the comb and suction power to gently lift lice and eggs. The teeth are rounded to smoothly run across the head. The comb head has been designed to adjust to either a rake or comb position for maximum comfort depending on the length of the hair. The design is smooth and rounded so that there is no sharp edges or components.As you gently comb through the hair, V-Comb’s™ disposable Capture Filters securely trap head lice and their eggs. This makes rechecking the hair easy and reduces the chances for infestation.After each treatment, simply remove the disposable Capture Filter, snap on the lid and hygienically dispose of the used filter. A brush is supplied with the unit to clean the stainless steel comb and unit between users.