It is named " Bi-Metal Heatbreak" It has two components with different thermal conductivity. It is composed of 2 parts. We use a special process to hold them firmly together. You don' t need to worry about it being damaged.
NOTE: This Heatbreak is only used for Dragonfly BMS and BMO hotend
Packge: 1 piece Bi-metal heatbreak
The Heatbreak is designed and manufactured by our partner (PHAETUS) for BMS and BMO hotend use. This one is not suitable for other hotend, please know before ordering.