DescriptionThis item is a set of bass drum enhancer, made of ABS and rubbermaterial, high-quality and durable. It is very helpful in expanding the deepness and broadness of the sound of your drum. Suitable for professional and personal use.Choose it for you.Features- Color: Black.- Material: ABS, rubber.- Size: Approx. 16.00X16.00X10.00cm/ 6.29X6.29X3.93in. - Made of high-quality ABS and rubbermaterial, durable and practical for long-lasting use. - This percussion instrument part, including 1 bass drum enhancer and 1 port hole protector, is professional and practical. - It can convert the drum into a bass reverb speaker to the bass audio boost. - The effect is adjustable, just need to adjust the tightness of the drum skin.- Concentrate the air in the drum cavity and create a compression effect inside the interior to make the bass part more powerful.