【Content Introduction】 This book is the official problem collection for the Nailist Technical Examination. It contains a wealth of content useful for exam preparation. 【Features】 The JNA TECHNICAL SYSTEM series is educational material specializing in nail techniques, with a variety of colors available. In particular, the blue, yellow, and green covers are distinctive. 【Target Audience】 This is ideal educational material for those aiming to obtain qualifications and those who want to improve their nail techniques. - Title: JNA TECHNICAL SYSTEM - Color: Blue - Color: Yellow - Color: Green - Title: Nailist Technical Examination Official Problem Collection ※Please refrain from purchasing if you are concerned as there are some notes and markings. ※We want to sell everything, so individual sales are not possible. ※Regarding the Gel Nail Technical Examination Written Exam Past Questions※ I previously purchased these on Mercari. From Beginner A to E, and Intermediate A to C (with answers) There were some minor content changes, but I passed both exams using these materials. Thank you for understanding that these are used items. ☺︎