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