Slayer Barbell Hollow Standard Series (Includes Blue Pad Covers) Free weight system that feels like a machine. Counter weight design increases resistance eliminating all dead zones to give maximum results. Padded arm supports increase torque like a machine and give comfort and reduce stress on hands, elbows and joints. Whole body fitness system that takes Minimum space. Used and recommended by many of the top fitness trainers and pros. Highly advanced ergonomic design. Outstanding results for all levels. Beginners, Pros and Rehab.