35 Preparation and presentation of audio visual displays for advertising purposes; Development of promotional campaigns; Business management; Advertising; Influencer marketing; Advertising for goods via an influencer; Retail services in relation to the following goods: Parts of machines for machines for additive manufacturing and treatment of materials, three dimensional (3D) printers, electric apparatus and devices, namely, controllers for machines for additive manufacturing and treatment of materials and parts for the aforesaid, detectors, electric displays, electric actuators, electrical heating elements, electric ventilating fans, electric pumps, wearing, plastic filaments and articles of metal hardware