You might as well order at least a kilogram of goods

Because we use a courier their pricing tends to have a fixed component, basically a fee just to get them out of bed and come and pick up your order. In reality this means that your carriage charge on international orders is going to be the same whether you order a couple of seals weighing only a few grams, or whether you order about a kilogram worth of goods

For UK domestic it is a flat rate up to 10 kilograms

So… i doubt anyone needs this spelt out, but you can effectively save on your freight costs by ordering multiple items at once and then sticking them in a drawer for safe keeping until you need them

reiss.