All BONES® WHEELS unique formulas are solely developed and produced in our own manufacturing plant located in Santa Barbara, CA. Using drastically different physical and engineering properties for each formula, BONES creates unique urethanes for specific applications of skateboarding.
Street Tech Formula™
Street Tech Formula (STF) is specifically engineered from top quality components to obtain all the best properties necessary for the ultimate in street wheel performance.
Wheel Diameter : 52mm Wheel Width : 29mm Wheel Hardness : 83B Wheel Formula : STF Wheel Colour : White Wheel Suggested Use : Street Wheel Surface : Treaded
- See more at: http://www.parlourskatestore.co.uk/bones-wray-matisse-stf-v3-wheels-52mm.html#sthash.TODr4xM5.dpuf