16”x16” Microfiber Cloth, Professional Grade, 300GSM 16”x16” (inches) 80% Polyester, 20% Polyamide 300GSM (Professional Grade) 500x Washable Packages of 24 Cloths Cloth Weight: 48 Grams This cloth would be defined as the “standard microfiber”. All microfibers are rated with a GSM (grams per square meter) rating, our professional grade quality is 300GSM. These towels are most typically used in the cleaning, auto, hotel, restaurant, and dairy farming industries. They are used by thousands of businesses and customers nationwide! Up to 500x washable and very absorbent, these are our best sellers! You won’t be disappointed! Use wet for standard cleaning, use dry to attract more dust! Anywhere you use any towel, a microfiber can do the job more effectively and more efficiently!