It i genuine Mamiya made cap for Mamiya 6X7 RZ camera back. 

Lens Cap is in good condition, inside and out.  There is some scuffing and scratches from normal use.  Cap is fully operational and functions as intended.

I would rate it an 8 on a scale of 1 to 10.

Shipping is free within USA and $7 worldwide via USPS first class mail.