Less motion. More control. More comfortable testing. Advanced glide control system. Works only with the OneTouch Delica lancing device. More comfortable testing (Response from study subjects when asked to compare OneTouch Delica to their current lancing device). Glide control for more precise lancing. Reduced vibration for smoother lancing. Thinnest needle from OneTouch. This is a bundle product that comes with 400 lancets.