Engineered for training at every level, the TYR Catalyst Stroke Training Paddles follow the form of an athlete's palm to provide a natural swim experience when training. Designed to build strength and improve technique. Small. Fluorescent yellow. New in packaging. Showcasing a durable, K-Resin construction, silicone tubing and multiple gridded lacing options, LCATSTK paddles offer the perfect balance between impact resistance, flexibility and fit.