The following triceps pushup device is made simply with a block of 4" x 4" pine and PVC piping. This PVC pipe is wide enough to allow for both your hands to grasp around it, such that you make a fist in the center of gravity while doing a push up. This allows for targeting your triceps muscle on the outer part of your arms more than your pectoralis muscle. Developing the triceps muscle makes your arms bigger, more so than your biceps--which people often try to do with curls. The pectoralis chest muscle would be better targeted with very wide hand stance for your pushups, which can be done well by doing pushups while grasping small dumbbells that are on the floor far to the sides.
