, , Stretch tube exercises: Squat-buttocks, back of thigh, low back (glutes, hamstrings, erector spinae), lunge: Front and back of thigh, buttock (quadriceps, hamstrings, gluteals, kneeling crunch: Abdominal muscles, trunk extension: Low back (erector spinae), chest press: Chest, front of shoulder, back of arm (pectorals, anterior deltoid, triceps), front pulldown: Mid-back (latissimus dorsi, lower trapezius), row: Mid-back (rhomboids, middle trapezius), lateral raise: Middle of shoulder (medial deltoid), arm curl: Front of arm (biceps), triceps press down: Back of arm (triceps). Exercise tubing, made of natural rubber, is available in five resistances with optional door attachment Stretch tube exercises: Squat-buttocks, back of thigh and low back, $9.99, $9.99