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