[sjcsjc]

I bought this for £12 a year ago. I see it's unavailable from that seller but you'll find it elsewhere. In the UK diabetics get these free. https://www.amazon.co.uk/gp/product/B004343VWS

[dkersten]

I got a similar one, also on Amazon, for a similar price. I'm not at home right now so can't check which one I got.