Features: 1. Applicable instruments: violin. 2. Can help improve the tone of the string. 3. The workshop is handmade and the quality is exquisite and exquisite. 4. It can be trimmed and polished, and it is cheap and good. Violin code installation guide: Step 1: Hold the knob and relax the strings. Step 2: Put the piano code, each string corresponds to each card slot of the piano code, the high and low parts on both sides of the code, the thick strings are placed in the high place, and the thin strings are placed in the lower. The third step: the piano code is straight, and the place where the piano code is placed is the position of the middle notch point of the F holes on both sides, and the position must be vertically aligned. Step 4: Tune the strings one by one. Specifications: Material: Maple Color: maple color Model: 4/4, 3/4, 1/2, 1/16, 1/8 Size: (4/4) 50mm*40mm*5mm/1.96*1.57*0.19'' (3/4) 45mm*40mm*5mm/1.77*1.57*0.19'' (1/2) 45mm*40mm*5mm/1.77*1.57*0.19'' (1/16) 30mm*30mm*5mm/1.18*1.18*0.19'' (1/8) 35mm*30mm*5mm/1.37*1.18*0.19'' Net weight: 3g Gross weight: 3g Notes: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Included: 1 X Violin Code 1. Applicable instruments: violin. 2. Can help improve the tone of the string. 3. The workshop is handmade and the quality is exquisite and exquisite. 4. It can be trimmed and polished, and it is cheap and good. Violin code installation guide: