New and improved thicker cell walls and thicker circular exterior wall make this Hot Wax Garage Bucket Grit  stronger therefore it will last you years of service 

Fits in the bottom of your bucket and cleans your wash mitt, brush, and towel to prevent you from adding swirl marks and scratches to your painted surface. This is step one for protecting the finish of your car against wash swirl marks and scratches. Separates the grit from the mitt

• Breaks dirty water into four quadrants, which keep dirt and grit at the bottom of the bucket
• Fits most 3.5 gallons, 4 gallons, 5 gallons, and 6 gallons buckets
• Removes surface extracts contaminants from wash mitts, brushes, and other cleaning tools
• One of many steps but one of the most important steps  for a scratch-free wash