Bullet Points:  1、High Quality: The metal balls is made of stainless steel and the long rod is made of 45th chrome-plated steel and hardened, it is hard and does not deform.  2、Different Uses: The small sheet metal balls are used for the alto saxophone and large ones for the tenor saxophone.  3、How to Choose: You can choose suitable sheet metal balls according to the degree of depression of the pipe body.  4、Item Size (cm): The rod measures about 23 * 1.1 * 6.5cm. Material: stainless steel. The package includes 1 long rod, 8 sheet metal round balls and 1 sheet metal barrel ball.  5、Best Gift: This saxophone repair tool set is the best gift for a loved one or saxophone lovers.     How to Use:  First use a vise to fix the rod, select a sheet metal ball pad of appropriate size and shape to press under the recessed area. If the recessed area is too hard or the operator's strength is not enough, you can take the second plan. Properly lengthen the rod and put the sheet metal ball pad under the recessed point. One people controls the instrument with both hands, another uses a hammer to beat the rod near the clamping end of the vise to make the rod tremble, thereby achieving the effect of beating the tube inside the tube.     Specification:  Name: Saxophone Sheet Metal Ball Set;  Color: silver;  Material: stainless steel;  Size: rod: about 23 * 1.1 * 6.5cm/9.05 * 0.43 * 2.56in;  Package size(approx.): 30 * 21.5 * 5cm/11.81 * 8.27 * 1.97in;  Packing: boxes.     Packing List:  Long Rod * 1;  Sheet Metal Round Ball * 8;  Sheet Metal Bucket Ball * 1.     Note:  If there is sinking on the side of the saxophone bottom, you can put the sheet metal ball into the pipe from the sound hole and then the deal with the sinking area