1. Memory foam material, with slow rebound characteristics, reduce pressure, improve wearing comfort, without compromising sound quality2. Snap design, easy installation3. S/M/L size can meet your various size requirements4. Equipped with storage box, suitable for placing various in-ear earplugs to prevent loss and keep the earplugs tidy5. Bluetooth headset is not includedSize:S, length: 11.9mm, width: 11.1mm, height: 7.9mmM, length: 12.7mm, width: 11.8mm, height: 7.9mmL, length: 13.8mm, width: 13.0mm, height: 7.9mm

http://olla.gr/12-pcs-wireless-earphone-replaceable-memory-foam-ear-cap-earplugs-for-airpods-pro-with-storage-box-grey/