JUN-L 4 Digital Combination Key Storage Lock Box with Resettable Code, Portable Key Safe Box Door Knob or Wall Mount Outside for Realtors, Contractors, Kids, Spare Key Storage: Amazon.sg: Home Improvement
Master Lock 5400D Set Your Own Combination Portable Lock Box, 5 Key Capacity, Black - - Amazon.com
Rectangular 4.5 Litre Container: Amazon.co.uk: Kitchen & Home