Learn more about The Bundle's 4x5 Closure | A Straight Human Hair Guide
4×5 closures,
explained easy.
What a 4×5 closure does, how it compares with a frontal, and how to choose the right length for a straight install.
A 4×5 closure is a finishing hairpiece with a base measuring approximately four inches by five inches. It covers a focused top or parting area without extending across the full hairline like a frontal. The The Bundle 15A 4×5 Straight Human Hair Closure is made from 100% human hair in Natural color and is available in 10", 12", and 14" lengths.
The facts, minus the guesswork.
What does 4×5 actually mean?
The numbers describe the size of the closure base, not the length of the hair.
A 4×5 closure is designed to cover a focused section at the top of the style. That gives you a defined finishing area while using a smaller piece than a full frontal.
10", 12", or 14" = hair length.
Those measurements answer two different questions, so choose them separately.
Who is a 4×5 closure for?
A 4×5 closure can make sense when you want coverage at the top of an install but do not need a piece that extends across the entire hairline.
It can be used when planning straight sew-ins or custom units where a closure-based finish works with the intended style.
Bundle length, desired density, placement, parting, and layering can all affect what works best.
If you're unsure, show your stylist the exact look you're building before ordering.
4×5 closure or frontal?
They do different jobs. Neither is automatically better. Choose the piece that fits the style you're actually building.
| DECISION | 4×5 CLOSURE | 13×4 FRONTAL |
|---|---|---|
| Coverage | Focused top and parting area | Wider front hairline coverage |
| Best for | Targeted top coverage | More hairline coverage and styling space |
| Base size | 4" × 5" | 13" × 4" |
| Plan around | Parting, bundle lengths and finished shape | Hairline, styling plans and installation method |
10", 12" or 14"?
Start with the finished look. Think about your bundle lengths, where the closure will sit, and whether the final style will be blunt, graduated, or layered.
The shortest available closure length.
A middle length for added length through the top.
The longest available option in this closure.
A closure does not have to be the same length as every bundle in the install. Your stylist can help determine which combination makes sense for your finished shape.
What does 15A mean?
On this product, 15A identifies The Bundle product line.
Hair-grade labels are not standardized across every manufacturer, so the number alone is not the most useful way to compare two products.
Compare what you can verify: material, texture, closure size, length, color, pack quantity, and the style you're planning.
Three decisions. Done.
Choose your finish.
This closure is Straight, so start with a straight-texture finished look in mind.
Choose your length.
Pick 10", 12", or 14" based on the proportions and layering of the finished style.
Confirm the install.
Before ordering for a complete install, confirm closure placement, bundle lengths, and desired density with your stylist.
Keep it gentle.
Treat your closure gently and keep product buildup under control. Detangle carefully from the ends upward, avoid unnecessary pulling around the base, and allow the hair to dry fully after washing.
Follow the care instructions appropriate for your specific installation method.
Still wondering?
Is a 4×5 closure the same as a frontal?
No. A 4×5 closure covers a smaller top or parting area. A frontal is much wider and covers more of the front hairline.
Is The Bundle 15A Straight Closure human hair?
Yes. The current Easy Hair Co listing identifies this closure as 100% human hair.
What color is available?
The current product listing shows Natural.
What lengths are available?
The closure is available in 10", 12", and 14" lengths.
Does 15A guarantee a universal hair grade?
No universal grading system applies across every manufacturer. Compare the verified product specifications instead.
Straight hair.
Top handled.
Building a straight look and need targeted top coverage without a full frontal?
SHOP THE 4×5 CLOSURE →Easy Hair Co Editorial Team. Product specifications reviewed August 2026. Installation needs vary by style and wearer. Consult your stylist when placement, density, or quantity is uncertain.