Deda Carbon Headset Spacer 1 1/8 Inch 3mm

Well, I suppose I must blame myself. I took this, from the illustrating image, to be a set of spacers - but in fact it's for just one 3mm spacer, which on its own is useless. Look closely and it does say Deda Carbon Spacer (no 's') - but the pic is of a set, and there is no option to choose thickness. The product description says "Deda Elementi 1 1/8 Headset Spacers - Carbon" (with an 's')My bad - but a ripoff at £3.99, so don't make the same mistake I did.