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