12 PCS Wireless Earphone Replaceable Silicone + Memory Foam Ear Cap Earplugs for AirPods Pro, with Storage Box 1. Memory foam ear caps, with slow rebound characteristics, reduce pressure and improve wearing comfort without compromising sound quality 2. Memory foam ear caps have a snap design, easy to install 3. Silicone ear caps, durable, non-toxic, non-odor, non-irritating to the human body, no allergic reactions 4. Silicone ear caps are soft and comfortable to wear, and have a stronger sound insulation effect 5. SML size can meet your various size requirements 6. Equipped with storage box, suitable for placing various in-ear earplugs to prevent loss and keep the earplugs tidy 7. Bluetooth headset is not included Note: 1. Three pairs of silicone ear caps and memory foam ear caps Size (memory foam ear cap): S, length: 11.9mm, width: 11.1mm, height: 7.9mm M, length: 12.7mm, width: 11.8mm, height: 7.9mm L, length: 13.8mm, width: 13.0mm, height: 7.9mm Size (silicone ear cap): S, length: 11.6mm, width: 10.1mm, height: 7.6mm M, length: 12.8mm, width: 11.5mm, height: 7.6mm L, length: 13.8mm, width: 13.0mm, height: 7.6mm