Foot pump inflating a mattress: Listen & Download Foot pump inflating a mattress .mp3 Error! Change your browser, please! ⇓ Download Foot pump inflating a mattress ⚠ Lower chains, Drawbridge ⚠ Bicycle hand pump ⚠ Hand winch ⚠ Mechanical sounds ⚠ Off, on, Hydraulic mechanism ⚠ Drawbridge raise chains ⚠ Chain hoist, Chain ⚠ Kick the bike speed switch ⚠ Small hydraulic gear ⚠ ★★★★★