Top quality, made in Sweden by Nord-lock
Comes as two seperate halves with serrated edges on the outside to dig into the material and teeth on the inside to lock against each other.
Price is for five complete nord-locks, as used per Vespa rim, a set of 4 (for Lambrettas) are available here http://www.lambrettaupgrades.co.uk/apps/ webstore/products/show/5922815 .
Comes as two halves (10 in total)
Price includes VAT @ 20%