I carved a large hand rest from Japanese cypress (hinoki) wood. When purchasing, please provide the dimensions (1, 2, and 5) of your current hand rest. I will customize it to your desired size. I cannot provide hand rests with screw-type shafts. The dimensions of the hand rest in the photo are as follows: 1. Shaft diameter: 5 mm 2. Length from the recessed part of the wood to the tip of the shaft: 4.1 cm 3. Thickness of the wooden part: 1.0 cm 4. Thickness of the white metal: 0.4 cm 5. Shaft length: 2.2 cm The black one in the photo is for comparison. A large hand rest increases the stability of the right hand. Some instrument shops also acknowledge that wooden hand rests improve the tone. Please give it a try.