Were shattering rulers ever a real concern? Seen this warning/claim since school but never seen the cause/effect of a non Shatterproof ruler.. : r/pics
Sr2 Non Shatter Resistant 12" Ruler - Pack Of 20 from £2.86
Classmates Shatter Resistant Ruler White 300mm/30cm - Pack of 10
Classmates Shatter Resistant Ruler White 300mm/30cm - Pack of 10
Helix Shatter Resistant Ruler 12 inch
Shatter Resistant Rulers 24 Pack
Broken Ruler Icon Stock Illustration - Download Image Now - Broken, Ruler, Icon Symbol - iStock
Helix Left Hand Shatter Resistant Ruler - 300mm/30cm - Pack of 1