Quality exercise bands can be used to strengthen, tone, shape and rehab muscles. Easy and affordable aid to increase strength, stamina & coordination. Exercise bands can be used by individuals and in clinics. All exercise bands are lightweight, take up minimal room and are highly portable. There are 3 progressive levels of resistance to accommodate the lightest to heaviest requirements. Cando is licensed to use the Thera-Band color sequence, so resistance level is easily identified. Exercise Bands come in 3 different resistance levels, identified by colors.