Logitech G604 Lightspeed Wireless Gaming Mouse Feet Skates - 2 Pack Replacement Glides for Smooth Tracking - Perfect for Gaming, Office Work, and Precision Control

The skates fit perfectly, are the right thickness, and glide smoothly. There is a thin plastic protective film over the skates that's hard to see and remove. It might be the reason I see a review saying these skates do not glide well.