These clamps are not sold separately from our gates and are for our gates only. You must purchase your gate from us for us to make you these custom clamps. No shipping costs are added to these clamps because they will be shipped with your gate. These are custom made clamps for our baby gates. If you don't want to screw your gate jamb into your post, this is the solution. We figure these out and make them custom for each specific gate order, and the type of clamp set we make depends on the customer's needs. These shown are just some examples of some that we've done. They are made out of the same wood as the gates and we finish them in the same finish as the gate you order.