Designed for round-stem wireless earbuds, these anti-slip hooks fit AirPods Pro 1/2 & AirPods 1st-4th Gen. 3.6mm clasps align with stems—no interference with touch sensitivity/wireless charging. Instant secure fit for old and new models, ending workout drops. Dual-layer structure: outer anti-slip waves enhance grip, inner flexible material eases ear pressure. Sweatproof design maintains integrity all day. 10mm trimmable ends adapt to small ears/sensitive users. Test full-length for 24hrs, then trim for optimal fit. 2 pairs allow all-based use:for Running, Cycling and Other Indoor-Outdoor Activities. Professional tools: micro-brass brush cleans earbud meshes for clear sound; stiff scraper removes hook debris. Compartmentalized keychain case protects accessories—swap hooks swiftly outdoors.