2 fitness elastic bands and 2 latex loops For body-shaping, endurance and strength training, to vary the intensity level of the exercises: easy, medium and difficult, Blue (Stripe): 200 cm x 15 cm x 0.3 mm; black (strip): 200 cm x 15 cm x 0.4 mm; blue (loop): 55 cm (contour length) x 2.5 cm x 1.3 mm; Black (loop): 55 cm (contour length) x 2.5 cm x 1.44 mm