“I love my power blocks. I have older Pro 125 Commercial Powerblocks. BUT these Selector pins, even this "commercial" version, are HORRIBLE. Why would they be made of plastic!? This is actually my 3rd set. The prize of 3 sets is probably equal to making metal selector pins. I had older power blocks (45lbs) that had metal selector pins. I don't understand why you would want to move away from metal esspecially with 125LBS dumbbells.”