Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Sivan High Density Foam Roller - Extra Firm With 1 Year Warranty
Product description: Improve your balance, massage your muscles, and stretch your tight hamstrings all in one using the foam roller. Foam rollers are excellent for stability exercises and myofascial release and alignment. The roller helps with self-myofascial release by putting pressure on tender areas along the muscle tissue (myo refers to muscle, while fascia refers to the tissue that surrounds the muscle fibers). When applying pressure, the golgi tendon organs help trigger the relaxation of the muscle spindles, helping dissipate the adhesions, increase blood flow, and enhance overall movement. Additionally, the rollers are perfect for hip mobility while increasing core flexibility. Flexibility is an important part of achieving and maintaining a full range of motion around the joints. The molded foam roller contributes by letting you gently challenge your back, hamstrings, hips, abs, and other body parts Made of EVA foam to resist moisture, these rollers can be used in physiotherapy, massage therapy, as part of Pilates or Yoga workouts, fitness routines and rehabilitation training. They are strong enough to withstand repetitive use during gym workouts and rehabilitation exercises and are ideal for stretching, improving core muscle strength, posture and enhancing stability. Some users even use foam rollers to practice their golf swing! Many people suffering from Iliotibial Band syndrome use foam rollers to help loosen the Iliotibial Band as this can help in the treatment and prevention of pain to this area. The shock absorbent material makes these foam rollers the perfect fitness aid for stretching and body strengthening. As well as being lightweight, this hard wearing roller has a sponge like feel to it for a firm comfortable grip. Unlike traditional celled foam rollers which break down and flatten out over time the molded foam doesnt have cells. Foam rollers were made popular by Physical Therapists and Massage Therapists and are now available at a fraction of the cost!
Product feature: Lightweight material resists moisture, Made of shock resistant EVA foam, Improve balance, core flexibility, hip mobility, Durable enough to withstand repetitive use, Perfect for yoga, pilates, massage therapy, rehabilitation exercises, fitness routines, physiotherapy
Product brand: Sivan
Target attributes: Length
Answer: attribute: length
value: None
source: None