ルーズベック・ダルシマー・ハンマー、ハート、パッド入り

These look and sound beautiful... But....I'm having a hard time finding hammers that don't cause an unpleasant buzzing sensation in my fingertips when I strike the string with them. Tried some from Amazon and discovered that they buzzed, so I returned those and thought surely these would be better. However, they have the same problem. They were both manufactured in Pakistan. Perhaps they are not meant to play my type of dulcimer? I'm going to have to return these as I don't think the sensation is good for my fingers. I feel the after buzz for a while after I play, unlike my old hammers, that strike away without producing any residual vibration in my hands. I'm sad because I like how these look and sound, but I'm not sure what they are doing to my hands.