Prospera PL023R Refill Roller Heads are perfect for the PL023 and PL023-b foot smoother. The grinding roller adopts unique trace mineral grains, soft and comfortable. It allows rotation of 360 degrees.The package comes with 2 coarse, 2 fine, 2 regular heads for best use on foot skin and other areas. Water cleaning is efficient and complete. Use your feet smoother once a week, maximum twice a week.Product Specifications• Total 6 roller heads• 2 Regular, 2 coarse, 2 fine• Long lasting material• Easy to install and use• Easy to clean• Measurement: 3"x2.3"x1.8"