A liquid dispensing device comprising: a container having a flexible surface; an elastomeric shape memory top part having a pump chamber dome , an annular pump chamber ridge around a periphery of said pump chamber dome , and a planar top part pump chamber flange around a periphery of said annular pump chamber ridge , a portion of the pump chamber flange extending away from a center of said pump chamber dome in a pump chamber flange extension ; a rigid bottom part having a circular pump chamber portion and a dispensing head portion connected by a neck portion , said dispensing head portion defining a delivery port on a top side thereof proximate said neck portion , said pump chamber portion having an annular lower part pump chamber flange , said rigid bottom part connected to an exterior of the flexible container surface along a bottom surface of said annular lower part pump chamber flange , with a portion of the rigid bottom part extending through an opening in and below the flexible container surface; a fluid outlet at a distal end of said dispensing head portion ; and a dispensing channel connecting said delivery port and said fluid outlet , wherein said neck portion is an extension of said annular lower part pump chamber flange ; and said annular lower part pump chamber flange and said neck portion are co-planar in an unstressed state, said top part connected to said bottom part along a periphery of said planar top part pump chamber flange and said pump chamber flange extension to define a channel between said pump chamber and said delivery port adjacent to and above the flexible container surface. a container having a flexible surface; an elastomeric shape memory top part having a pump chamber dome , an annular pump chamber ridge around a periphery of said pump chamber dome , and a planar top part pump chamber flange around a periphery of said annular pump chamber ridge , a portion of the pump chamber flange extending away from a center of said pump chamber dome in a pump chamber flange extension ; a rigid bottom part having a circular pump chamber portion and a dispensing head portion connected by a neck portion , said dispensing head portion defining a delivery port on a top side thereof proximate said neck portion , said pump chamber portion having an annular lower part pump chamber flange , said rigid bottom part connected to an exterior of the flexible container surface along a bottom surface of said annular lower part pump chamber flange , with a portion of the rigid bottom part extending through an opening in and below the flexible container surface; a fluid outlet at a distal end of said dispensing head portion ; and a dispensing channel connecting said delivery port and said fluid outlet , wherein said neck portion is an extension of said annular lower part pump chamber flange ; and said annular lower part pump chamber flange and said neck portion are co-planar in an unstressed state, said top part connected to said bottom part along a periphery of said planar top part pump chamber flange and said pump chamber flange extension to define a channel between said pump chamber and said delivery port adjacent to and above the flexible container surface. <EOS>