Syringe Table Mount

The picture is a demonstration of my prototype which cracked after putting it on the counter top. I'm not sure what the syringe type tools are but I was asked by the science department to design these for the labs. I would highly recommend 50% or higher infill for durability and supports are absolutely needed. The difference between the prototype and #2 is that #2 is thicker and has a 1mm larger gap to grab the table along with .25mm bumps for extra tension. The third version is the same as the second except the holes are farther apart.