The PETKIT GO Tai-Chi Bluetooth Smart Leash attachment is only compatible with our PETKIT GO Smart Leash. The Tai-Chi leash is great for users looking for an additional color option or those who wish to stylize their leash coloration. This Leash is composed of a blended Lycra and Nylon materials that add a more comfortable tug without placing much stress. Features Built-To-Last indestructible dual reinforced stitching at every seam. Features a customized buckle at the other end of the leash that easily buckles and snaps into place at the front of the Go Leash. Available in Multiple Colors.