I'm selling this item because I no longer go to the sea. It was used by me. After use, it was rinsed with water and stored indoors. The year of manufacture is unknown, please check the condition from the images. The boom length is 151-197cm as measured. The images show the ropes for fixing the boom and pulling the sail from the boom end, but these have been discarded. If purchased, you will need to install them. White residue is attached to the mast attachment part, this is the trace of strong double-sided tape, because I was attaching the rubber on the right end of the last image to tighten the RDM mast. Shipping will be handled via Seino Transportation, to their business location for pickup.