Strainer - DUNNETT R4L Swivel- Cut Out Chrome ALL METAL w/screwsR4L LIMTED STOCK The new R4L design has many improvements over the oriental R Class throw off. This model has a cut out footprint to fit onto beaded snare drums such as the Ludwig models. Due to the new design the R4L has fewer parts, is lighter. Other features include a user adjustable friction control for the snare tension control and the swivel lever. The mounting track has been modified to allow it to be fitted to shells of various thickness