TITAN barrier has unrivaled strength and durability; it is made of the most durable materials (Polypropylene, PVC); high visibility R1 reflective class reflecting 20% more light than standard reflective material; ANTI-TRIP FEET - molded design of massive feet that prevents accidents; SURELOCK™ connector clamp allows barriers to be connected to each other even on uneven surfaces and curbs; smart locking design maximizes stability during storage and transportation