Smooth ergonomic design: Although our rubber sheet is designed for use with barbells you can also use it alone for floor exercises such as abdominal exercises. Rubber is easy to hold in your hand and if it falls it will not cause a huge distraction. Manufacturered by ZLSP. Weight plates can be used to perform muscle strengthening exercises and endurance training and to increase flexibility and balance. A single weight plate can also be used for warm up exercises. High-quality strength: Each rail is made of heavy-duty stainless steel with a strong high-grade rubber cover. This helps mitigate damage to the floor equipment and self.