Sure Grip Original Phenolic Wheels:
The original Phenolic wheel by Sure-Grip.
The wheel that started it all; this is the original wheel that John L. Wintz created when he started the company.
The SG Original wheels is a very hard and very fast roller skate wheel, if you want to slide this is the only wheel you will ever need.
Available in brown natural or black.
Size: 39mm x 33mm deep
Colors: Black, Brown