Usability: Simply plug in your earphones to use. Comfortable Fit: This skin-friendly silica gel weighs approximately 10g. Environmental Protection Design: Made with environmentally friendly TPE material, it is environmentally friendly and non-toxic, harmless to human health. Durable: It has excellent elasticity and will not break even when pulled. AirPods Pro Neck Strap, Easy to Attach and Detach, Prevents Drops, Silicone, Anti-Drop, Lightweight, Flexible, Excellent Grayness, Airpods Pro Strap (Black)