About this item Measure your earphones nozzle, these memory foam ear tips fit many brands of earphones, accommodating 5.0mm-7.0mm nozzle wireless and wired in-ear earphones. This memory foam is made from high-quality polyurethane foam, safe and non-toxic, and specially designed for in-ear earphones, providing a softer and more comfortable experience than ordinary foam materials. Memory foam replacement tips feature slow rebound, conforming closely to the ear canal, anti-slip design, and offer 24 hours of comfort, making them suitable for long wear and exercise. After extensive testing and design, these memory foam tips provide a superior audio experience with enhanced bass and a good seal that blocks out external noise. You will receive 3 pairs of small size memory foam tips, ideal for smaller ear canals, plus a plastic storage box. Dimensions: 4 x 3 x 0.4 inches.