This is the replacement clear pyrex glass tube for Joytech eGo AIO ECO AIO kit, if your original glass tube is broken and want to find the backup, this is the best one for you. 3pcs Joytech eGo AIO ECO glass replacement is just $7.99, you can also add 2USD for another 3pcs, which means you can get 6pcs for only $9.99. cheap price but good quality.