Roborock VibraRise Mop Cloth × 2 for Roborock S7 Series Robot Vacuum(Blue Gray) https://www.amazon.com/dp/B08XZ73XCJ/ref=cm_sw_r_u_apa_glt_fabc_A9SMT6JWYPDV9SGAK5K9?_encoding=UTF8&psc=1
Looks to be sold out now. Watch these posts. Someone posted they were available last week. I must have been one of the lucky ones to score them.
replacement mops are available on amazon. https://www.amazon.com/Roborock-VibraRise-Cloth-Robot-Vacuum/dp/B08XZ73XCJ/ref=sr_1_8?dchild=1&keywords=roborock+s7&qid=1619662222&sr=8-8
They do offer them just looks like they're out of stock. I bought one box.
In the US Keep an eye on this link for when it comes back in stock. https://www.amazon.com/dp/B08XZ73XCJ/ref=cm_sw_r_cp_api_glt_fabc_S0GGQW6FFWZKVFJH4ZMM?_encoding=UTF8&psc=1