Iron weight units, stainless steel weights,iron cast weights,test weights M1 class available ; 2kg-1000kg is available 1. Iron weight units, stainless steel weights,iron cast weights,test weights2. M1 class available3. 2kg,5kg, 10kg, 20kg, 50kg, 100kg, 200kg, 500kg, 1000kg is available4. Inside iron; good surface iron cast weights