The drum hole rings tool is an economical and practical auxiliary hole opening accessory. It can not only assist in opening holes, but also protect the drum skin holes, prevent the drum skin holes from cracking, and has a certain decorative effect.Opening a hole can increase the volume of the kick drum by 20%, the sound head is more prominent and the impact is obvious, and the is significantly improved. In order to obtain a more realistic recording effect, it is usually necessary to open a hole on the drum skin of the kick drum, and then use a drum microphone to pick it up at the hole. sound, or put more mics inside to get low frequencies.Process: surface electroplatingFor 6-inch drum kitsColour: silverMaterial: nylonPackage Contents:3 x Drum kit drum hole ringOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.