... * W * H) ends: 170 × 350 × 50mm (L * W * H)deceleration zone, also known as speed brakes, slowing arch, buffer strips, speed ... and companies.Material: made of high strength rubber, rubber deceleration zone shock absorption, excellent resistance to stress, long life, less wear ... in time to prevent traffic accidents.Some of the deceleration zone inlaid with reflectors at night will reflect a bright red ...