Protector support body 4 mm
Stainless steel - 4 mm inner diameter x 4,2 and 6,4 mm length - bag with 2 + 2 units
With this protector tube this problem is solved and it is also possible to restore that have been cracked or broken.
It is advisable to incorporate it from the first day because it will ensure a long protection over time. You can use any type of glue for plastic and metal to join both parts.