+ excellent running on plane floors + long operating life + high chemical resistance
+ excellent running on plane floors + long operating life + highly resistant for slivers + runs silent and even + high chemical resistance
+ brillant shock absorber + ideal for valuable floors - low chemical resistance
+ high runnability + ideal for valuable floors + electro-conductive versions available
+ excellent running on plane floors + absolut spurfrei + high durability + electro-conductive versions available
+ high durability + high chemical resistance + impressing heat resistance - low runnability