Scubapro Divers Egg Dry Box 11.5x6cm Surface Storage  £7.60

Very well made and closes securely giving great confidence that it will protect my car keys while swimming. Was slightly smaller than I expected but still a really good piece of kit.

Very handy tool. I use it when swimming to hold my car key. Also while kayaking.
Shame it’s black would be better in a bright colour. But still worth having.

Perfect for the car key. But only the key and the front door key.