The present invention relates to an artificial pigment and a method of preparing the same, specifically, to an artificial pigment with excellent dry pick resistance and to a method of preparing the same. The case includes an integrally formed hollow body having a front opening portion, a rear opening portion, and a supply-opening fixing portion. The method and device can be applied to non-destructive materials testing with ultrasound. Moving the insert longitudinally with respect to the first and second plates increases or decreases the distance of the first plate with respect to the second plate, effectively expanding the inter-body fusion device and increasing the volume of the interior cavity. The bimanual dexterous manipulator comprises a pair of dexterous manipulators. The pet barrier connection member comprises a first end configured to couple to a top surface of a first panel and a top surface of a second panel, a second end configured to couple to a bottom surface of the first panel and a bottom surface of the second panel, and a rod coupled to the first end and the second end.