Develop your reflexes and improve hand-eye coordination with this lightweight but very durable training tool. The recently updated and improved Rival Reflex Ball allows you to work on your timing while improving speed and accuracy. The soft rubber ball, which is now 30% lighter than before, is suspended from a flat polyester elastic cord whose durability has been tested in a laboratory to the highest quality standard. The durable metal carabiner easily attaches to the headband, which can be adjusted for a secure and comfortable fit.