





🧶 Tie it tight, see it bright — the pro’s choice for every line!
The Yellow Mason Line is a 250-foot roll of #18 braided nylon twine engineered for superior strength and durability with a 170 lb tensile rating. Its fluorescent yellow color guarantees high visibility for construction, masonry, and gardening tasks. Unlike twisted cords, this braided string resists fraying and knot slippage, making it the reliable, professional-grade solution for heavy-duty outdoor projects.










| ASIN | B0BFBXKY8M |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #789 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Masonry String Lines |
| Brand | ACE Supply |
| Color | Flo Yellow |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,435) |
| Date First Available | September 25, 2022 |
| Item Package Quantity | 1 |
| Item Weight | 4.5 ounces |
| Item model number | MLR-FYL-250-6-BRNYL18 |
| Line Weight | 170 Lb Max Tensile Strength |
| Manufacturer | ACE Supply |
| Material | Nylon |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | MLR-FYL-250-6-BRNYL18 |
| Product Dimensions | 6.1 x 1.85 x 1.85 inches |
| Shape | Round |
| Size | 250 Ft Roll |
| Style | Fluorescent Yellow |
| UPC | 850026074352 |
| Unit Count | 250 Feet |
L**L
Strong, consistent, no fraying — exactly what it should be
This twine does exactly what nylon string is supposed to do. It’s strong for the size, holds tension without stretching, and doesn’t fuzz or fray during use. The thickness is consistent along the length, which matters if you’re tying knots that need to stay put. Cuts cleanly, knots easily, and doesn’t slip once set. The bright white color is useful when visibility matters for gardening, bundling, or layout lines. The spool feeds smoothly without tangling or collapsing halfway through. Nothing fancy, no gimmicks, just reliable material that performs predictably. If you need dependable string rather than decorative twine, this is the correct choice.
T**R
Perfect for a class
Used this twine for a class building Rube Goldberg devices, and it worked perfectly. It does fray when cut, but is strong and well woven otherwise.
K**Y
Good and strong
This is tough and works well. Good deal for the amount and durability
J**E
Excellent quality
Very strong, excellent color, I'll use again if needed.
M**N
Nice twine, great thickness
Exactly as described. Great thickness for the project, great strength. Only issues was the end wasn’t separated and after searching for it for several minutes I finally gave up and had to just pull on a strand until I could unwrap it enough to find the end.
B**T
Good nylon garden string.
As expected. Good nylon string for gardening. Good color. Potential for many uses.
M**.
Works in 40mph winds. Great string.
Worked great. Used it to tie down a tarp over a gazebo style swing set. Stayed in place in recent 40 mph winds.
M**E
very strong and durable
Very good for the money
A**R
Nothing was mentioned in the description of the string on line, before we purchased it, but on delivery there was a note on the label that a product used (presumably the dye?) has been found, in the USA, to cause cancer. We were not prepared to take the risk and Amazon gave us a full refund. Maybe, the product should be withdrawn from sale?
S**T
Orange leveling line. Good and sturdy. Love the color so people don't trip over it when im laying out
M**L
Corde solide et de qualité
S**D
Good nylon string line. Good value and quality. Can be pulled as tight as you need for construction work.
G**.
Good product!
Trustpilot
3 weeks ago
5 days ago