These 11-1/8"W polypropylene dividers allow you to split up different items within a bin. For use with shelving systems that have bins measuring 4"Hx11-1/8"Wx11-5/8"D (Items 120958, 120965, 121023, 121029 & 121035) or 4"Hx11-1/8"Wx17-7/8"D (Items 120973 & 120987); shelving systems all sold separately. Black color. Sold as a package of 50 dividers. USA made.