<https://pantelides.eu/product/aluminum-t-slot-profile-90-deg-corner-bracket-30x30-8mm-8-set/#product>
<http://schema.org/description>
"This set of 8 corner brackets includes:\r\n\r\n\r\n\r\n\r\n8 pieces of 90 degrees corner connector brackets"
<https://pantelides.eu/product/aluminum-t-slot-profile-90-deg-corner-bracket-30x30-8mm-8-set/?add-to-cart=262>