Hi glad you like it! The top of the arm rest does detach from the main body by lifting up slightly and wiggling it towards the hinges, give a firm tug and it comes off but be careful as the hinges are just plastic. Then you will see two Philips head screws in the centre, two towards the back and one at the front which is locate about an inch down on the catch. Once these have been taken out the top releases away and can then be taken to an upholsterer. The leather that Seat have used is glue bonded to the plastic frame and new leather has to be fixed in the same way. Hope this helps!