The curvswab handle prevents streak lines and makes edge to edge cleaning easier producing a higher quality finish than the regular swab handle alongside 1 curvswab short handle and 1 curvswab long handle this kit also includes green vswabs 13x size 115ml of sensor clean liquid cleaner and 115ml of vdust plus liquid cleaner whilst the multi ingredient alcoholic vdust plus liquid is suitable for removing oil the sensor clean liquid is better for water based stains and dust contami