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