Lancets come in many different sizes, from 28 gauge (the thickest) to 33 gauge (the thinnest). The thinner the lancet, the less pain there is in pricking your finger. However, thinner lancets need to be replaced more often than thicker ones.
How To Use A Lancing Device Properly [5:18]
https://www.youtube.com/watch?v=dbxN8OgosCo
HOW OFTEN DO YOU RECOMMEND CHANGING LANCETS?
https://www.diabeteshealth.com/how-often-do-you-recommend-changing-lancets/
OneTouch
OneTouch® Delica® lancing device
Lancets available in two sizes: 30 Gauge Fine and 33 Gauge Extra Fine
https://www.onetouch.com/products/accessories/onetouch-delica-lancing-device
The OneTouch® Delica® lancing system
https://www.onetouch.com/products/accessories/onetouch-delica-lancing-device
Using your OneTouch® Delica® lancing device
https://www.youtube.com/watch?v=HEFC0gpzxhg
Genteel
Genteel Draws Blood without Pain
https://www.mygenteel.com/
Genteel Lancing Instrument
$99.00
https://www.doctorsoption.com/featured/genteel-lancing-instrument.html
Genteel Butterfly Touch Lancets
(Box of 100) $14.99