Prym 300 cm / 120-inch Spring Tape Measure Jumbo (Self-locking, release button)
Product description
The essentials
A Prym spring tape measure in the jumbo size: 300 cm / 120-inch in length, with clear cm/inch markings and a practical self-locking action. It’s the sort of measuring tape you reach for when a standard tape feels a bit too short or fiddly—think larger fabrics, wider craft projects, or layout work where you want a bit more reach.
On paper, the key selling points are the long 300 cm span, the dual cm/inch scale, and the spring-style housing paired with a release button. The markings are described as “clear”, which matters more than people expect: if you do a lot of measuring-and-transfer, readability is what keeps mistakes down.
It’s not a “do everything” tool for everyone, though. If your work is mostly small patterns or quick measuring tasks, a shorter tape might be easier to handle day to day. This one leans into the longer-jobs side of craft and making.
Where it shines
What stands out about this jumbo tape is the combination of long length and a locking mechanism you can control. The self-locking feature helps hold measurements steady while you transfer them, and the release button gives you a clean way to let the tape retract without wrestling it.
A realistic micro-use example: imagine you’re measuring a wide panel of fabric for a bag lining or a large craft wrap. You extend the tape across the full width, lock it in place, then mark the measurement on the fabric. When you’re done, you press the release and retract it smoothly. That’s exactly the kind of workflow where locking + clear markings tends to feel worth it.
What matters most in daily use

This tape’s design is built around practical measurement habits. Clear markings are specifically mentioned, and the cm/inch scale is there for anyone who works in either system (or switches between them depending on what they’re following).
However, it’s a “jumbo” length, so it can feel different from compact tapes. It may be slightly more cumbersome to store and carry, and it’s likely best kept for the moments you genuinely need that extra reach.
It makes sense if you want one tape that covers larger craft dimensions without constant rearranging. But if storage space is tight or your measuring tasks are usually under a metre, you may find yourself not using the full length often.


Tech specs
- Length: 300 cm / 120 inch
- Tape style: Spring tape measure
- Locking: Self-locking
- Release: Release button
- Markings: Flexible tape with clear cm/inch markings
- Type: Jumbo tape measure
- Colour: White
Who it’s for (and who should skip it)
It’s a solid pick if you’re into dressmaking, general crafting, or any kind of project planning where you regularly measure wider areas and want measurements held securely while you work.
It may not suit you if you’re mainly doing very small measurements, quick household jobs, or if you’d rather prioritise compact size over maximum reach. Jumbo tapes can end up being a bit of overkill when you don’t need the length.

Quick buying checklist
Before you commit, it’s worth checking what you actually measure most often. If your projects frequently need more than a typical short tape’s reach, the 300 cm / 120-inch length is the point. If you’re frequently switching between cm and inches, having both scales on the same tape should reduce friction.
Also consider how you prefer using measurement tools: if you like locking the tape in place and working from that fixed point, the self-locking + release button approach will feel natural. If you never use locking mechanisms, you might not get as much benefit from this specific design.
Is it worth it?
Worth buying if you want a jumbo spring tape measure with self-locking control, a release button for quick retraction, and clear cm/inch markings—especially for wider craft projects where accuracy depends on readable measurements.
Better avoided if you mostly measure small sections, need something ultra-compact for everyday carrying, or you don’t really benefit from a locking tape while you transfer measurements.

Mini FAQ
Does it measure in both cm and inches?

Yes. The tape is described as having clear markings in both cm and inch.
Is it self-locking?
It’s listed as self-locking, with a release button to let the tape retract.
How long is the tape?
The length is 300 cm / 120-inch.
What kind of jobs is it most suited to?
It’s positioned as a jumbo measuring tape for larger craft measurements where extra length and clear markings are useful.
Will it be awkward if you only do small measurements?
It might be. Because it’s a jumbo length, it can be less convenient when you don’t need that extra reach.
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