This is a directly stated application on the manufacturer's product page and describes the product's purpose as replacement cleaning wool

WIHA angiver

where the operating temperature is determined by the temperature-sensitive properties of the tip

electro-tinned surface

WSR205 Holder for WMRP lodde kolbe MIL379101111 This is a directly statedWSR205 safety rest from WELLER This WSR205 safety rest from WELLER is a resting stand safety holder designed for use with WMRP micro soldering irons. The product text confirms that the WSR205 safety rest is compatible with both WMRP and WMRP MS models and allows for a choice between dry and wet cleaning. Features Designed for use with WMRP micro soldering irons (WMRP and WMRP MS). Choice between dry and wet cleaning. Supplied in packaging with