Available for purchase.
Because TM is a trademark that has been applied for but has not been formally approved.
TM is the abbreviation of English trademark (commercial mark or trademark).
It is commonly used internationally, mainly to tell others that the graphic or text is used as a trademark, not for decoration, and to warn other manufacturers not to use it without authorization.
Since my country implements the registration principle, only by applying for and obtaining registration can you obtain the exclusive right to trademark and obtain legal protection.