• Power Web Combo Hand-Finger Booster Black-Green /Powerful-Ultra PowerWeb Combo Black-Green /Powerful-Ultra PowerWeb Combo Hand-Finger-Arm Booster: For more value and flexibility, the Power-Web Combo Power Web Combo has two different resistance levels in one product only. Power Web Combo is also made of the same special material-supported rubber as other Power Web Series products, weighing 450 grams with a diameter of 36cm. There are 4 different Power Web Combo products for 6 different Resistance/Colors. Resistors: Skin-Red ( Very Light-Medium ) Yellow-Green (Light-Strong) Red-Blue (Medium-Very Strong ) Green-Black (Strong-Ultra Strong) Please Specify Color When Ordering. You can report it by text or phone.