1. Silicone material, durable, non-toxic, no peculiar smell, no irritation to human body, no allergic reaction2. Wearing soft and comfortable, with stronger sound insulation effect3. 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: 11.6mm, width: 10.1mm, height: 7.6mmM, length: 12.8mm, width: 11.5mm, height: 7.6mmL, length: 13.8mm, width: 13.0mm, height: 7.6mm

http://olla.gr/6-pairs-wireless-earphone-replaceable-silicone-ear-cap-earplugs-for-airpods-pro-with-storage-box-white/