Does the Tumbler Knife Sharpener work?

Does the Tumbler Knife Sharpener work?

Reviving my pocket knife with a quick and easy sharpening session

Tumbler Rolling Knife Sharpener Detachable Knife Sharpening

Tumbler Knife Sharpener / HORL2 - Has anyone used these? : r

INSTRUCTIONS – Tumbler Rolling Knife Sharpener

Customer reviews: Tumbler Rolling Knife Sharpener

Abardi Rolling Knife Sharpener for Straight Edge

Precise & Long-Lasting Sharpness: Any serious chef knows quality knives are expensive. Keep yours cutting like new for much, much longer with a

Tumbler Rolling Knife Sharpener™ - Knife Sharpening Made Easy - Rolling Knife Sharpening System for Kitchen Knives - Knife Sharpener Kit Offers 15

Tumbler Rolling Knife Sharpening Gift Set (2 Pack) – Tumbler

1 Holiday Gift for Him The Original Tumbler Rolling Knife Sharpener

INSTRUCTIONS – Tumbler Rolling Knife Sharpener

Tumbler Rolling Knife Sharpener Detachable Magnetic Knife