isometric chalkboard icon isolated blue background school blackboard sign circle button vector |
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| navigate by keyword : blackboard chalkboard board chalk vector illustration blank education school background icon isolated isometric blue white circle button classroom frame class flat empty object design space wood wooden sign template retro billboard copy banner business concept dirty lesson old back graphic study write learning teacher university inches rub teaching |
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| Isometric Chalkboard icon isolated on blue background. School Blackboard sign. Blue circle button. Vector. |
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