Good quality, made by Scootopia. Lambretta series 1,2,3 & DL GP brass and finished zinc plated chain case oil level drain plug.
This side case Oil Level Plug is made to the Italian factory spec and is the plug that sits higher to the right of the magnetic drain plug
Does Not come with a mineral washer, these are available here: http://lambrettaupgrades.co.uk/apps/webs tore/search?utf8=%E2%9C%93&sort=newe st&query=drain+breather+plug+washer
Or you could try this set of viton seals, ideal if you have a leaky casing http://lambrettaupgrades.co.uk/apps/webs tore/products/show/3451450
Price includes VAT @ 20%