Blue-transparent penis pump with measuring scale to control your results. Create low-pressure by squeezing the handy bulb. Cylinder 24 cm long, inner Ø 6.4 cm, outer Ø 6.3-7 cm. With a flexible silicone sleeve (Ø 3.1 cm). Material: ABS/silicone, free of phthalates according to EU regulation REACH.