Add new question to the seller

Dear Sir,
I was really desperately hoping you wouldn't mind to much to answer a question for me? We purchased a boat identical to this one from a dealer last year and it was missing the back well cover. We've had our upholsterer make a new hatch cover however, I can find any information as to what size gas shocks to buy. Could you please please tell me what size they are?
I would greatly appreciate any help.
Thank you,
Julie