Cast iron standard weights are extremely durable and are recommended for all users, catering to all abilities and strengths. This Set Included: 1 x 6ft Solid Smooth Standard Barbell; 1 x pr regular spring collars; 2 x 14″ Solid Spinlock Standard Dumbbells; 4 x Spinlock Collars; 4 x 5Kg Cast Iron Standard Discs; 4 x 2.5Kg Cast Iron Standard Discs; 6 x 1.25Kg Cast Iron Standard Discs; 6 x 0.5Kg Cast Iron Standard Discs