LOW FRICTION SURFACE MADE OF HIGHLY WEAR- RESISTANT PE (12 MM, RED); INCREASES THE SERVICE LIFE BY MORE THAN 30 % COMPARED TO OTHER STANDARD IMPACT BARS,AS THE SLIDING SURFACE IS MADE OF UHMW-PE;ELASTIC RUBBER BASE (APPROX. 40 SHORE A); RECOMMENDATION: 4 PIECES TT-FASTENING UNITS TYPE IV PER METER