... 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 ... functions, do not brake in time to prevent traffic accidents.Some of the deceleration zone inlaid with reflectors at night will ...