This is a set of 2 Lugs RC Racing Tires - BARZ  1/10 scale 2WD / 4Wd  buggy REAR tires
PURPLE COMPOUND 1OTH SCALE 35% longwear/65%clay -medium/soft -used 60 degree + (120)
packages comes with 2 tires and 2 medium/hard foams
 
Compound Chart:  
RED - medium compound - used in hot weather
Red/Yellow - Longwear medium compound - used in hot weather   
PURPLE - 1OTH SCALE 35% longwear / 65% clay - medium/soft - used 60 degree + (120)
White- Soft compound - used in mild weather
White/Yellow - Longwear soft compound - used in mild weather   
Pink- 10TH SCALE - clay tire - soft/extra soft used 30-90 degree 
BLUE - super soft compound - used in cold weather 
Blue/Yellow - Longwear extra soft compound - used in cold weather
 
Use as a tuning option:
Tire is designed as a semi directional, one direction will give slightly more forward traction & less side grip or reverse the direction and have slightly more side grip and less forward traction.
 
Also a great tuning option on the front of the car, before doing set up chages to the vehicle to add or loose steering, try rotating the tires.
 
This Directions bar tire is designed for optimal traction.