New from Zephyr - Muscle Polishing wheels, these are cutting wheels with a large opening to improve balance.  They have 5 pack of cotton as opposed to the traditional 2 pack, so there is a lot more cloth in the wheel.  the wheel is thicker, you get more contact area, so they cut more and last longer as well.  The Colours reflect the level of cut, in order of highest to lowest cut:

• Red - Heaviest Cutting
• Orange - Second Heaviest Cutting
• Yellow - Third Heaviest Cutting
• Charcoal - Fourth Heaviest Cutting
• Dark Blue - Firth Heaviest Cutting
• White Flannel - Final Finishing