Here is a replacement Powertec Olympic Collar. They are used to keep your weights on the sleeves. You can also use them on your olympic bars if you prefer them to the spring collars. They are sold individually. Postage: Australia Wide is $8.80.We don't ship overseas. Please familiarise yourself with our Shipping Terms and Conditions.If you have any other questions just give us a call on 1300 790 432.