Qrity 10-Digit Push Button Combination Padlock with 5 Numbers Pre-Set (Unchangeable) Mechanism Bit Key Lock for Children and Elder : Amazon.co.uk: DIY & Tools
Steel Mark Enterprise Ltd. - Taiwan Padlocks, Keyless Entry Locks Exporter & Manufacturer | Global Sources
Henry Squire HSQCP40 CP40 Push Button Combination Padlock 38mm
532) Chinese Push Button Lock from Tjita1 - YouTube