Made with premium stainless steel,includes a clean waterproof bag. Widely used in doctor offices, clinics, and hospitals world wide. Design for ear canal construction,effective in removing build up and impacted ear wax Easy to use and remove with a practical double ended design,perfect replacement for tips. Skid resistant ergonomics design, safe kits for personal and family.Be slow and careful when you use them.Do not stick them too deep into your ear canal. Not recommend who wear hearing aid