Kinesiology Tape from Spider Tech gently & safely lifts the skin from the muscle to create increased space for blood & lymphatic fluid circulation. These carry important growth factors that are integral to your natural healing processes to the afflicted areas for a shorter recuperation period & enhanced repairs. Made from 100% finest top quality cotton & acrylic adhesives, the Pre-Cut Kinesiology Strips from Spider Tech are lightweight & intended to mimic the properties of human skin for your comfort & convenience. The Hamstring variation of the strips sits at the back of the thigh & is shaped to effectively cover the majority of the muscle safely. When applied correctly, the tape can remain firmly in place for up to 5 days. Latex free, long lasting & water resistant. Other designs for specific use are for the wrist, postural, neck, left shoulder, right shoulder, lymphatic, lower back, hip, groin, upper knee, full knee, elbow, calf & arch & the ankle areas. For more options, choose from the I & X pre-cut strips.