wooden slats 61 and 62 respectively as in the previous embodiments once base 60 is in place c shaped section 63 can capture either stem 9 or adapter 70 or frame halves 15 and 16 and maintain their appropriate orientation through the use of protrusion 64 in this instance assembly 108 fig1 comprising blade 107 shaft 109 and head 110 are appended to base 101 in use base 101 is placed upon the euro table with assembly 108 protruding between slats 104 and 105 thereupon base 101 is rotated 90 degree so that slats 104 and 105 capture blade 107 retaining base 101 and c shaped section 102 and protrusion 103 in place fig1 shows a similar embodiment to that of fig1 whereby base 116 is retained on a euro table between slats 117 and 118 by rotating base 116 and appended blade 112 shaft 111 and head 115 90 degree causing its capture blade 112 is provided with lips 113 for causing a spring like capture of base 116 to the top surface of adjacent slats 117 and 118 turning to fig1 a base member 120 incorporating c shaped receiving element 121 and ridge 122 can be employed as described above in this instance base 120 is provided with flap 124 which can be connected to the planar surface of base 120 through the use of a plastic web of material creating a living hinge in use flap 124 is depressed from its.