Boltless...
The locking comb is a crucial component of the Velox Rapid Edge securing the triangular supports and planter edging in place. This is the innovation that mitigates all bolts saving time and eliminating the risk of under tightening.
VELOX Rapid Edge™ UK00003507705
Registered Design - Europe: 008214910 & UK: 90082149100001
Patent no: GB2600394
https://www.ipo.gov.uk/p-ipsum/Case/PublicationNumber/GB2600394