For clinics that don't need a full case on hand, the E-A-RLink 3A Insert Eartips in Yellow are also available in a 100-piece pack — the same disposable, single-use foam tip designed for 3M E-A-RTONE 3A and 5A Insert Earphones, sized right for lighter testing schedules or as a starting order before committing to bulk. These Standard, Adult Size tips (1/2 inch height, 13.7mm diameter) are latex-free and made from the same well-established 3M foam used in Classic Yellow and Beige earplugs, delivering the same audiometric benefits — improved noise attenuation, reduced occlusion effect, and reliable single-use infection control — in a smaller, easier-to-manage quantity.