I bought a total of 6 double ball shakers. They are irregular in size, weight, and s+ecially in sound (each one sounds diferent, and only 1 out of the 6 shakers has a reasanable sound , the other shakers came with this poor lackluster sound that seems to have to do with the heterogen types and sizes and quantities of seeds inside that are not well measured . The cords are too long and they dont have a sistem to adjust length. Some of the balls had small cracks in it.
Thomman is an excelent store however. Its about this product in specifc.
I didnt return or switch the product because the period for it had already passed. The product is a original etno thing and I conceive its not suposed to be standardized, but as music instrument and a shaker it has not a good sound.
Sorry to say that.
love you Thomman anyway