This is a full sized Complete windsurfing setup. Obviously all the parts are working and fit together as you can see in the photos. Comes with: Fanatic Ultra Lite Cat windsurfing board New 5 m² UP Windsurfing sail Fiberglass mast Adjustable clamp-on Boom Mast Cup Universal Joint Shift on the fly slide in mast track Fiberglass fin Harness lines Lines (uphaul, outhaul, downhaul) This sail has never been wet. So it has never been used before. The mast track is a sliding shift on the fly mast track, meaning you can adjust it while you are sailing by stepping on the footpedal and moving out where you want it. There is lots of junkie gear out there and often the sellers have no idea if the parts they are selling even fit together or if they’re broken. Many times equipment looks just fine but as soon as your rig it up it immediately breaks. This is why I always test all the gear that I sell. This entire set up has been tested and it is ready to hit the water. I am a professional windsurfing instructor and I can answer any question you have but please keep in mind I can only spend so much time explaining things to you unless you want to purchase lessons either for Rigging/de-rigging or carrying your equipment to & from your vehicle or sailing or tying it to your roof etc etc. I know how to do it all but my time is limited and I’d be more than happy to explain everything to you in great detail during a lesson. I have much other windsurfing gear but this set up I have available today right now.