So like many people I initially used leftover ABS plastic for my bicep hooks. I simply heated them to shape and glued them in using E6000. Finally after installing my third pair which again broke, I tried something else. I found these 4 Pack Over The Door Hooks which are 2cm wide and are a perfect replacement for my ABS bicep hooks. They have a nice durable white finish to them as well. I had to cut them down using a rotary tool (wear protective glasses) and bent them to shape using pliers. I gl