Collar devices including interlinking collar components that have a hollow portion and a securing portion connected by a flexible portion have increased strength and security. The number of collar components included in a collar device may be adjusted in order to properly fit a collar to a particular animal. Such collar devices generally include a plurality of interlinking collar components, as well as first and second loop attachment components, which couple to respective ends of interlinked collar components. A loop with a fastening element is then inserted into openings of the first and second loop attachment components.