I used this comb daily for 5 days and it got all the lice and nits out of my daughters hair. I tried a plastic nit comb which did nothing and another metal one which took out some of the lice. This was the only one to get everything. This comb solved our lice nightmare.Get more detail about Nit Free Terminator Lice Comb, Professional Stainless Steel Louse and Nit Comb for Head Lice Treatment, Removes Nits.