Kustom Service is an online retailer specializing in paints and accessories for scale modeling, serving hobbyists and professional customers. Its catalog covers a broad range of finishes and applications, including primers, transparent colors, chrome plating products, metallic and pearlescent colors, fluorescent paints, and compounds. Modelers can also browse water-based and automotive colors, candy colors, and dedicated ranges for science-fiction and fantasy subjects.

For military and historical projects, the store offers military paints, Federal Standard colors organized by FS series, and colors for the Regia Aeronautica. This range supports different modeling styles and color-matching needs, from detailed aircraft and military builds to creative fantasy designs. Kustom Service sells through its online shop, with ordering available in multiple languages and prices displayed in euros or pounds.

The site states that online orders are delivered within three to four days. Customers can contact the business by email, through a web form, or via WhatsApp; a separate email address is provided for business-to-business orders