Shelf dividers help you organize items by separating different categories, and also keep items from one stack or pile from toppling over onto another stack of pile, so once you've got your closet organized you can keep it that way. Use our NBW All Purpose Clear Acrylic Shelf Dividers to organize your cluttered closets, keep T-shirts, sweaters, towels, purses and shoes neatly separated, expand storage space, make your closets more tidy and easy to use! Not only that, but you can use it anywhere to help you save space and clean up your organization! After receiving the acrylic shelf divider, take it out and just slide it into the shelf. No need for punching or other auxiliary tools, simple and convenient. Note that the thickness of the shelf should be less than 0.75 inches, higher than this size may cause breakage. Specifications: 8 inches high and 12 inches deep Suit for shelves up to 0.75-0.95 inches thick High quality Acrylic materials to make sure the shelf separators strong brand new in sealed packaging