Specification : Product name : adjustable seat armrest Plastic : plastic & metal & PU leather Width : 5.6cm/2.2'' Length : 35.5cm/14'' Adjustable range : 90 Side : right / left Placement on seat : right / left Recommended mounting height : the distance between seat cushion and the underside of the armrest is 11cm ( or up/down 2cm according to you need) Note : 4.Without screws !!! Installation : 1.Open the cover of the seat back. 2.please sit on your seat and make the mark on the position where is the most comfortable to you. 3.drill two holes on the mark you have made. 4.fix the armrest mount to your seat by screw given. 5.open a little hole on the sponge, then take the axis out of the sponge. 6.As for the cover, it is the same with last step. 7.Fix the armrest to the parts from the outside, and fix the screw. 8.Put on the lid. Package included : 1 Or 2 x seat armrest Dear buyers, we appreciate your business, if you are satisfied with our service. please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a ''PERFECT 5 STARS''. If you have any problems, broken, quality problems, please don't worry, and don't leave bad feedback. Please send us an email first, we will reply you as soon as possible, please allow us to respond within 12 hours. We understand your mood, and will provide you with the best solution for your problem, please give us the opportunity to solve the problem, For any case,please feel free to come to us,we are always here. look forward to and thank you for your trust. _x000D_