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Quick verdict
The Omnigrip RN24 is worth considering for repeated fabric strips and longer rotary cuts measured in inches. A shorter quilting ruler is enough when your pieces are small, while a tape measure solves a different task. Buy for the six-by-twenty-four-inch format and useful markings, not a promise that a non-slip backing cannot move.
Research-based buying guide. Checked October 17, 2026. We have not tested these products hands-on. Manufacturer information, attributed external findings and our editorial judgments are distinguished below.
Which option fits your routine?
| Choice | Choose it for | Tradeoff |
|---|---|---|
| Omnigrip RN24 | Longer guided cuts and inch-based patchwork | Needs working space and controlled handling |
| Shorter quilting ruler | Small blocks and compact cutting areas | May require repositioning on long pieces |
| Tape measure | Body, curved or general length measurements | Not a rigid rotary-cutting guide |
Check the RN24 model and your units
Prym identifies RN24 as a 6 x 24 inch Omnigrip ruler with eighth-inch edge markings, a quarter-inch grid and 30-, 45- and 60-degree lines. It includes left- and right-hand numbering. Omnigrip and other Omnigrid ruler versions are related products, but confirm the exact model.
An inch-based pattern is the clearest fit. If you routinely work in millimeters, repeated conversion may be more frustrating than choosing a ruler marked for that work. A long ruler does not remove the need to understand which line belongs to the pattern’s finished size or seam allowance.
Grip helps only within a sound cutting routine
The manufacturer describes a non-slip backing to help keep the ruler positioned. That is a design feature, not proof that it will stay fixed on every fabric or under every cutting technique. Test alignment on an offcut before using valuable material.
Place the fabric on an appropriate cutting mat and keep fingers outside the blade path. Make sure the ruler is fully supported for the planned cut. We have not tested slipping force, measurement accuracy or cutting results against a competing ruler.
Decide whether the length solves a problem
Twenty-four inches can be useful for longer strips, borders and suitable folded fabric. Measure your usable cutting surface and the pieces you commonly make. Extra ruler length adds little if your mat and table cannot support the cut.
A smaller ruler can be easier to place around small pieces and keep close to a machine. You may eventually use both sizes, but a beginner does not need to buy every rectangle and square before completing a first project. Start with the dimensions the project actually calls for.
Keep a serviceable ruler when it already works
Check an existing suitable ruler for a clear readable scale and sound guiding edge. If it gives controlled cuts in the needed units and size, the non-slip branding alone does not justify replacing it.
Buy RN24 when its length, backing and markings meet a recurring need. Skip it as a replacement for flexible measuring or if a smaller guide already fits. Compare exact dimensions, country-specific delivered cost and return terms; an apparently cheaper ruler can use different units, thickness or edge design.
Buying in the United States or Canada
Choose the button for your country and compare the exact model, included parts, seller, delivered cost and return terms. Offers and replacement-part availability can differ between Amazon USA and Canada. Confirm regional manufacturer support before relying on a guarantee for an imported product. We do not promise stock, a fixed price or delivery to every address.
Related guides on My Indoor Space
- Is the OLFA RTY-2/G 45 mm Rotary Cutter Worth It for Home Sewing?
- Is an OLFA 24 x 36 Inch Rotary Cutting Mat Worth the Space?
- Are Clover Wonder Clips Worth It Instead of Pins for Sewing?
Sources and research
- Prym Americas: Omnigrip ruler family and RN24 features
- Prym: 6 x 24 inch Omnigrip markings and material
Specifications establish stated features, not independent proof of performance. We base our value judgments on the task, fit, upkeep and alternatives. External experiences are attributed to their sources; no personal testing or measured savings is claimed.