Specially-designed green fibers collect oil from the transfer roller inside the machine and deposit it smoothly on the lane surface. Since bristles wear down over time, depending on lineage and surface, the brush should be replaced about once a year for proper oil application.Compatible with all Century lane conditioning and combination machines that do not use mohair buffer tubes.Features:Metal drive coupling is available separately, order part number A0420Replace annuallyCompatible with: Summit, Summit S, Express, Magnum