Hi<br/><br/>What is the term for the broken glass that is cemented on a wall for security reasons? Our newspapers/magazines use the word <b><i>shards.</i></b><br/><br/><a href='https://www.google.com.pk/search?q=indian+gooseberry&biw=1024&bih=677&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwjRjcmCib_NAhUFORoKHW8lBOgQ_AUIBigB#tbm=isch&q=shards+on+a+wall' target='_blank' rel='nofollow'>https://www.google.com.pk/search?q=indian+gooseberry&biw=1024&bih=677&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwjRjcmCib_NAhUFORoKHW8lBOgQ_AUIBigB#tbm=isch&q=shards+on+a+wall</a><br/><br/>Are these sentences natural? Any suggestions are welcome. <br/><br/>I want to have <b>shards fixed/cemented</b> on my outer garden walls.<br/><br/>The <b>wall had shards and so</b> the thief couldn't scale it.<br/><br/>The <b>shards on the wall deterred the children</b> from climbing it.<br/><br/>Thanks,<br/><br/>Tom