... -friendly wahing ball,with a micro circle surface,of 100% nylon material,same as tootbrush,efficient incleaning clothes,roll together with ... and other developed countries is more popular.Main components: 100% nylon + plastic ballUse the principle: to use its power to increase ... , so it can wash with the general washing detergent. 2, Free of harmful chemicals such as phosphor and boron, so it ...