and sections 11 and 12 support 23 and sections 11 and 12 are preferably as thin as possible to minimize polymer used but preferably not thinner than 1 millimeter to preserve structural strength required for the objects of the invention and protection of a user from needle wounds from needle 21 further polymers for sections 11 and 12 are preferably clear or somewhat translucent so that an outline of needle 21 or an inserted medical liquids container can be determined with clinic or hospital light shining through sections 11 or 12 visibility of needle 21 and or such a medical liquids container can be achieved through slots 28 quite easily but clear or translucent sections 11 and 12 provide additional visualization of those structures fig2 shows syringe 30 with luer lock tip 33 plunger 31 and barrel 32 connected by adapter 25 at connector 26 with a tip of syringe 30 resulting in aligned orientation of needle 21 barrel 32 and sections 11 and 12 needle 21 is clearly visible through slots 28 as being axially aligned within a downward cylindrical space 34 between sections 11 and 12 the tip of needle 21 is always within space 34 and preferably shorter than sections 11 and.