What should be checked when developing a dual-ended makeup brush?
Specify the role and dimensions of each head, usable grip clearance, balance, logo position and protection for both ends. Review the complete tool with its intended formula and packaging. BH32 provides a recorded eyebrow-and-spoolie example, not a fixed specification for every dual-ended design.
| Decision | BH32 starting reference | Review on the custom sample |
|---|---|---|
| Angled eyebrow end | 4.5 mm wide; 6 / 5 mm long and short edges. | Edge control, flexibility and application with the intended brow formula. |
| Spoolie end | 21 mm long; 7.5 mm wide in the source note. | Separation, reach and shape retention after the agreed care routine. |
| Whole tool | 130 mm marked overall dimension. | Grip clearance, balance, logo visibility and protection for both ends. |
Give each end a specific job.
BH32 combines an angled eyebrow end with a spoolie. Define the application task for one end and the grooming task for the other, then evaluate them independently. Combining two tools saves a separate handle, but both ends still need to work comfortably for their intended tasks.
Specify the heads and usable grip separately.
The supplied BH32 drawing identifies both heads and the overall size, but does not state every usable grip dimension. If you need more finger clearance or a different balance, state that change in the brief and confirm it on the sample. Two head measurements alone are not enough to define the complete tool.
Check how both ends are handled and stored.
Review the sample in the way your customer will hold, place and pack it. Assess whether the unused end touches the hand, a surface or the inside of a pouch. Protective caps or sleeves may be development options; their fit, clearance and ventilation must be checked rather than assumed from a visual concept.
Plan the logo and packaging around both ends.
Choose a logo position visible in the intended holding orientation. Ask for a physical packaging sample with the brush inserted. Check that neither head is compressed and that the user can remove and replace the tool without catching the bristles. The final protection method is part of the custom specification.
Review use and care before approving the format.
Use the intended brow product on a sample and assess control, comfort and residue removal under the agreed procedure. Record the condition of each head and both connections after the review. The supplied drawing is a size reference, not evidence of a completed durability or hygiene test.
Use this in your sample review
Review the tool in three use positions
BH32 gives a real two-ended starting reference. Its drawing does not establish grip clearance or packaging performance. Review those decisions with the complete sample and its proposed storage.
Swipe across the table to read all three columns.
| Use position | Observe on the sample | Record separately |
|---|---|---|
| Using the angled end | Finger position, control and whether the spoolie touches the hand. | Usable grip length and proposed changes. |
| Using the spoolie | Reach and control while the angled end is unused. | Protection and clearance of the opposite head. |
| Removing and replacing the tool | Whether either head catches, rubs or is compressed by the case. | Case opening, internal space and removal direction. |
Do not transfer dimensions between similar-looking references.
UP021 and UP060 show brow-and-spoolie directions, while CAT-p047-r3c2 combines two fibre heads. UP068 shows several face-brush colourways and ZB001-F07 pairs a flat top with a smaller tip. Select a reference first; use the pairing selector below to bring its review questions into your brief. The BH32 drawing supplies dimensions only for BH32.
State whether the quotation is per tool or per set.
One dual-ended tool has two working ends but is one assembled piece. If your requested retail set includes several tools, list that assortment and the number of sets separately. A photo containing four colourways does not establish that four tools are supplied as a fixed bundle.
Evaluate the packed sample, not a pouch photograph.
Insert and remove the proposed brush in its actual sleeve, tray or pouch. Check both orientations if either is intended. A cap or insert shown in a design image is an option to evaluate; its clearance, retention and suitability still need agreement.
Recheck interfaces after changing a head.
A different head size can affect the grip, balance and packaging clearance. Mark which end changed, retain the prior sample and review the complete assembly again. Keep the unchanged end in the comparison so a revision does not introduce a second problem.
Dual-ended use and packing worksheet
A blank CSV for your own review. Open it in Excel or another spreadsheet app, complete it privately, and share it with your chosen supplier when ready. Nothing is submitted by downloading it.
Download the blank worksheet (CSV) ↓PRETTY · Template revised 2026-09-27 · Not a completed inspection or certification.Plan your next step
Ready to discuss your project?
Tell us which brushes you want to develop, how they will be used and what you would like to customise. Add the points from this guide to your enquiry so we can review the specification and sample requirements with you.
Tell PRETTY the job of each end, your grip preferences and how the tool will be stored. Start from BH32 below or explore the other two-ended designs, then carry the selected reference and review points into your brief.
Develop your dual-ended brush with PRETTY →Explore other dual-ended pairingsApply this to your product brief.
Use the two heads and marked overall size as separate entries in the brief. Packaging clearances, material changes and final performance still need physical sample review.
BH32 · Dual-ended eyebrow and spoolie
4.5 mm head width · 6 / 5 mm exposed bristles
Overall: 130 mm
Use BH32 in this brief →