The professional tuner assisted with the tuning, trying a variety of materials before choosing a 13mm thick aluminium tube to adjust to a deep tonal B major pentatonic scale. When the breeze blows the windcatcher and drives the aluminium tube to resonate, you will hear the deep tone. For you who are lounging on the patio, the breeze blowing the wind chimes is a pleasure, the atmosphere is intoxicating and it can relax your body and mind.The wind chime is made of aluminum pipe and pine. The total length of the wind chime from the top's S-shaped hook to the bottom's catcher is 37" Among them, six classic black anodized aluminum tubes have excellent corrosion resistance and wear resistance, and the length ranges from 8.7" to 12.6". The wood is made of wear-resistant and non-cracking pine. The