12 Instrument Double Decker Cassette Replacement Rails PreviousNext 12 Instrument Double Decker Cassette Replacement Rails IMS-2112RL 0.0 star rating Write a review Resin Replacement Rail Set. Two-Tier, 12 Instrument Base and Compression Rails for IMS-2112. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.