This is a factory cover to access the little clutch adjuster found on Ducati bevel drive singles as well as 750 Round Case motors (750GT & 750 Sport). This kit comes with a new gasket and your choice of either slotted screw set or allen head screw set in stainless steel.
The cover pictured here is the cover you will get. Somone filed off the DUCATI logo and polished it as you can see.
You get the following: 1 cover 0400.49.020 1 gasket 0755.49.025 2 screws 0755.49.030