Features: Engineered with 5sizes (XS/Small/M/Large/XL), these silicone ear tips for earphone fit deliver comfort and noise isolation by adapting to diverse ear canal shapes, ensuring secure grip during intense workouts. Lightweight sweatproof silicone construction minimizes ear fatigue while the antislip grooves lock headphones firmly in place, ideal for high motion activities like sprinting or cycling. Perfect for athletes, runners, and daily commuters seeking durability, sweat resistant ear tips that maintain hygiene through easy rinsing after outdoor adventures or gym . Optimize your music experience during trail runs, classes, or city travel – these waterproof ear tips withstand rain and perspiration while stabilizing your earbuds. The included a clear storage case organizes ear tips by size for quick identification, enabling effortless portability in pockets or bags to refreshing your fit. Specifications: Component: Silicone 4Option Color Box Size: Approx.60x45x13mm 1set includes 5size(Large/M/Small/XS/XXS,show as picture) Features: high softness, strong wear resistance, ergonomic design Usage scenarios: daily commuting, sports and fitness, comfortable wearing for a long time Package Includes: 1set/10pcs Ear Tips note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color