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