In a recent project, I assembled a pair of homemade thick bar handles for thick bar weight training. Thick bar training challenges the forearms much more than the regular 1-inch bar. The homemade thick bar grips are mainly made of PVC pipes and, unfortunately, have a smooth outer surface. The slick surface on the improvised fat bar grips poses a safety risk when the poundages increase. This is unlike the surface of the regular 1-inch thick barbell and dumbbell bars where the knurling provides traction for better gripping capability.
