New old stock, original rear sprockets for so many mopeds!
These can be found on Minarellis, Morinis, Garellis, or even old Tomos. You may find these on many other models as well.
The center hole is 39.5mm in diameter.
The bolt holes, are 62mm on center from across the center hole.
For 415 chain which is what basically every moped uses.
Compare to your original sprocket to be sure this is the one you need. Most common moped sprockets are either 39.5mm or 42.5mm. These are 39.5mm.
Color may vary but most are as pictured. These are new old stock.