Pay Attention to:

The pen tip is made of wax, which is prone to melting at high temperatures. Before placing an order, please make a reasonable purchase based on your own environmental conditions. Thanks your understanding.

The Wax Head is available to replace.

https://www.beadablebliss.com/products/solid-color-wax-bullet-head-accessories-for-adding-rhinestones-23-8mm?_pos=3&_sid=78ab57b8f&_ss=r