Affiliate disclosure

As an Amazon Associate we earn from qualifying purchases. When you use a buy button on this site and go on to purchase, we may receive a commission. It costs you nothing extra: the price you pay is the price you would pay arriving any other way.

What it changes

It pays for the photography, the writing and keeping the figures on this page current. That is the whole of it.

What it does not change

• Which products appear in the popular section. They are ordered by how many customer ratings each has, not by what they pay.
• The quantity guidance. Nobody is told to buy more than a job takes.
• The safety section, which reports what agencies publish whether or not it is convenient.
• The per-piece price table, which is arithmetic and cannot be arranged.

How the figures are kept current is on how we update, our standards for the writing are in the editorial policy, and the products themselves are on Willbond.