line chalkboard icon isolated blue background school blackboard sign colorful outline concept vector |
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| navigate by keyword : art back background banner billboard black blackboard blank board business button chalk chalkboard circle class classroom color colorful concept contour copy design dirty education empty flat frame graphic green icon illustration isolated learning lesson line linear lineart object old outline retro school sign space study template vector wood wooden write |
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| Line Chalkboard icon isolated on blue background. School Blackboard sign. Colorful outline concept. Vector. |
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