Hide crimp tubes with a professional flourish using the 4mm copper crimp cover. This round crimp cover looks like a shining accent bead when placed over a crimp tube. These copper crimp tubes feature a brilliant gleam glowing with fiery tones. They would work well with other copper components. These crimp covers will cover crimps that are up to 3mm in size. It's easy to make every aspect of your jewelry designs stylish with these crimp covers.