Knobs, one at a time, but two pictured for different viewing angles. Multiple available. Secure with a grub screw so ideally for smooth shaft pots. Tape and ruler or scale. These ones are brown. Off white and black ones in other listing.

Use the add to basket then request total option if you want a bunch of different things at one package price.

Overseas bidders check in advance about postage. If you find it last minute and bid, that's cool, but message and and give me time to check postage before paying, so I can actually find out and invoice correctly.