The product I ordered was the 3 inch flail mower hammers. They held up ok. The hammers are weak and the brake in half quite easily. The product packaging is terrible!!!! I tried explaing this to customer service but I don't think she cared. My order was missing 2 of the 5 pieces I ordered. They were quickly replaced with a full set of 5 at no additional charge. I truly appreciate that. I have ordered multiple times and every time my order is received the box is completely destroyed. You put 5lbs of steel in a cardboard box unsecured and expect to to arrive in tact. Thats a joke. I would be happy to send you photos of the box as your product arives if it would help. Please look into proper packaging as I order and need these on time.