Knowledge is Power - Office Inspirational Motivational Inspiring Achievement Success - Quote Lettering Decor, Saying Sticker Graphic Art, Adhesive Vinyl Large Wall Decal Decoration Please contact seller with your color choice or the decal will be made the color shown in the picture. This decal says 'Knowledge is Power' Easy to apply and can be cleanly removed without damaging your walls. Instructions are included with your order. Apply to walls, doors, windows, or any other smooth or semi-textured surface. Premium exhibition-grade vinyl films by Oracal, an industry leader in vinyl manufacturing.