Compatible with: Dell Multi-Function e525w printer cartridges This Packages Includes the following Compatible Cartridges: 1 Dell Toner E525w Yellow Toner 593-BBJW 3581G Color Page Yield*: 1,400 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) Professionally manufactured by LD Products.