Linzer Blue Dolphin Emery Cloth Medium 9" x 11" 25 Pack Size:9" x 11" The primary difference is that

The primary difference is that hard water minerals are replaced with potassium instead of sodium

Front panel opens for quick and easy refilling

Flexible split-top fibers

NO MORE WIGGLE: With the STA-TITE Fastening System your seat will never come loose

Linzer Blue Dolphin Emery Cloth Medium 9" x 11" 25 Pack Size:9" x 11" The primary difference is thatEmery Cloth is ideal for high performance sanding, scraping, or polishing metal. Flexible and tear resistant backing make for a longer lasting, more durable product that saves you time and gets the job done more easily. FEATURES & BENEFITS: For high performance on a wide variety of metals Excellent for scraping, sanding or minor tasks Durable Flexible backing