100% cast iron Imported SET OF 2 DUMBBELLS - 40LBS TOTAL: TWO 14”x 1.15” handles, FOUR 2.5lbs plates, FOUR 5lbs plates, FOUR collars WORKOUT WITH A SECURE GRIP: Our core fitness adjustable dumbbells set with a diamond knurled chrome handle increases grip comfort, preventing slips and accidents during exercises DURABLE AND LONG-LASTING: Made of sturdy cast iron covered with black paint finish preventing rust and corrosion for lifetime use. Also, the chrome handle connector adds to the durability of the set, a secure, firm, and non-slip grip VERSATILE EXERCISES: You can adjust the weights easily with our heavy duty collars for even more exercise options EASY TO USE & CONVENIENT HOME WORKOUTS: Easily adjust the weights and work out at home without having to go to the gym. Space-saving design makes it perfect for small home gyms