JBC High-Visibility Orange Traffic Cones with 3M Reflective Collars - 28-inch Revolution series is quality manufactured using premium grade PVC injection molding technology The most durable traffic cones available in the U.S. market Strong mechanism foundation design absorbs huge amounts of force from impact without causing damage to the cone Special "basketball grip" texture on the inside provides no-stick separation Complies with MUTCD requirements for highway and utility use