Package & Quality: Made of high quality plastic, durable, long-lasting. Chrome plated surface, smooth and beautiful.Pack includes 2 total toilet push button. NOTE: Please check the size before purchasing due to the differences of tank hole Toilet Tank Button Size: 38mm thread dia dual flush push button with rods. Fit for 1.49Inch(38mm) toilet tank cover hole diameter. Easy To Install: Dual flush toilet kit button fit for 38mm water tank cover hole.1.Unscrew the lock nut and insert the button into the hole. (Full row buttons and half row buttons need to be consistent) 2.Check whether the button rod is just in contact with the button. If it is too long, you can cut it short. If it is too short, you can turn the button rod out to adjust the required length, and screw in the lock nut until it is firm Two Button Design& Flexible Length: Full drainage or semi-drainage can be selected. While saving water, it also protects resources and the environment. The total length of the torsion bar is 9.4 inch; you can cut out the length according to your needs or rotation it extended Note: Please measure the size of your part to match our products before purchasing. This will prevent you from receiving unsuitable products and waste your time. Colour:Photo Color Material:plastic Size:Diameter:38mm Package Contents: 2 x Toilet Tank Button Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.