isometric chalkboard icon isolated green and red background school blackboard sign square button vector |
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| navigate by keyword : blackboard chalkboard board chalk vector illustration blank education school background icon isolated isometric green red orange square 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 rub teaching |
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| Isometric Chalkboard icon isolated on green and red background. School Blackboard sign. Square button. Vector. |
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