... performance significantly, and no noise and no comfort Description:Specifications: Ladder: 250 × 350 × 50mm (L * W * H) ends: 170 ... * H)deceleration zone, also known as speed brakes, slowing arch, buffer strips, speed bumps, slow plastic, deceleration pad, slow ... deceleration road humps, rubber speed hump, rubber buffer, rubber speed bump, road speed hump, road rubber speed hump, road humps, rubber ...