Size:H:110mm W:62mm Net Weight:115g.In the bell series of our products, the last digital number of item NO. describes the voice of the bell. LD-1A1 is the lowest voice.LD-1A2,LD-1A3..., LD-1A8 is the highest voice. the bigger the last digital number is, the higher the voice is. The Voice of this item is la. You can also choose the eight kind voice according to your prefer.Haolin Arts Crafts Co,Ltd