A construction system, comprising: at least one connector element, said at least one connector element comprising a plurality of teeth elements uniformly spaced apart, wherein at least one of said teeth elements defines a first side and a second side, each of said first and second sides comprises four corners, wherein a male protrusion element is located proximate to each corner of said first side, wherein a male protrusion element is located proximate to each corner of said second side; and at least one second element for selective manual attachment and manual detachment to said at least one connector element, said second element comprising: a body having at least one connector pair, said connector pair including a first connector member and a second connector member; said first connector member having an outer periphery and a surface adapted to receive a male protrusion element, said surface having a recessed region adapted to receive a male protrusion element, and a ridge having a bounding wall extending in a first direction; said second connector member having an outer periphery and a surface adapted to receive a male protrusion element, said surface having a recessed region adapted to receive a male protrusion element, and a ridge having a bounding wall extending in a second direction; said first direction being opposed to said second direction, whereby male protrusion elements of said at least one connector element, respectively received in said recessed region of said first connector member and in said recessed region of said second connector member are retained. at least one connector element, said at least one connector element comprising a plurality of teeth elements uniformly spaced apart, wherein at least one of said teeth elements defines a first side and a second side, each of said first and second sides comprises four corners, wherein a male protrusion element is located proximate to each corner of said first side, wherein a male protrusion element is located proximate to each corner of said second side; and at least one second element for selective manual attachment and manual detachment to said at least one connector element, said second element comprising: a body having at least one connector pair, said connector pair including a first connector member and a second connector member; said first connector member having an outer periphery and a surface adapted to receive a male protrusion element, said surface having a recessed region adapted to receive a male protrusion element, and a ridge having a bounding wall extending in a first direction; said second connector member having an outer periphery and a surface adapted to receive a male protrusion element, said surface having a recessed region adapted to receive a male protrusion element, and a ridge having a bounding wall extending in a second direction; said first direction being opposed to said second direction, whereby male protrusion elements of said at least one connector element, respectively received in said recessed region of said first connector member and in said recessed region of said second connector member are retained. a body having at least one connector pair, said connector pair including a first connector member and a second connector member; said first connector member having an outer periphery and a surface adapted to receive a male protrusion element, said surface having a recessed region adapted to receive a male protrusion element, and a ridge having a bounding wall extending in a first direction; said second connector member having an outer periphery and a surface adapted to receive a male protrusion element, said surface having a recessed region adapted to receive a male protrusion element, and a ridge having a bounding wall extending in a second direction; said first direction being opposed to said second direction, whereby male protrusion elements of said at least one connector element, respectively received in said recessed region of said first connector member and in said recessed region of said second connector member are retained.