The Bintiva fitness bar is a one-piece solid cast iron bar made from professional-grade materials encased in foam for ultimate user safety and comfort. The exercise bar features color coded end caps that clearly display the weight of each bar. The solid (not sand filled) construction assures that the weight of each bar is evenly spread across the bar and enables the user to add weight to standard exercises such as squats and lunges, making it a great asset to any home gym. The bar is recommended by fitness professionals for full body toning and strengthening The length of the 5, 8, 10, 12, 15, 20, 25 bars are 48. The length of the 30 Lb bar is 60 The workout bar is crafted from professional grade materials, and is encased in foam for ultimate user safety and comfort The exercise bar features color coded end caps that clearly display the weight of each bar The bar enables the user to add weight to standard exercises such as squats and lunges, making it a great asset to any home gym.