The ones I used are different; I used sliding utility knives when I worked in the distribution center. The handle of most of them was uncomfortable.

Earlier this year I bought a folding utility knife that is comfortable in my hand and is small enough to fit in my pocket comfortably.

https://www.amazon.com/Husky-Folding-Sur...k+utility+knife

Disclaimer: I have no affiliation with Husky.

Jeanette Isabelle
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I'm not sure whose twisted idea it was to put hundreds of adolescents in underfunded schools run by people whose dreams were crushed years ago, but I admire the sadism. -- Wednesday Adams, Wednesday