SMAI Commercial Pump Set is manufactured from high grade Poly Urethane, making it very easy to clean and also durable and quiet under use in commercial applications. Pump set also includes Solid bars for higher maximum loading allowance, great for all types of Personal training applications where space is limited as an alternative to Olympic bars. The weights are easily changeable with tri-grip feature on all plates making them easy to hold and pick up. This also gives them a dual purpose for ot