Large hot rollers build volume by lifting hair at the roots, so damp, detangled hair wound upward on 1¼–1½ inch rollers and left to cool gives loose, lasting body.
Skip one step and the set collapses: hair that’s soaking wet steams instead of shapes, and rollers pulled out while still warm release a curl that falls flat within the hour. Big rollers are forgiving tools once you know the order — heat, section, roll, cool, release — and this walkthrough keeps to that sequence using the settings printed in the manufacturer manuals.
What Size Rollers Give You Volume?
For volume and loose waves on medium-to-long hair, reach for the 1¼-inch and 1½-inch rollers first. Smaller barrels form tighter curls, while the big ones smooth the strand over a wide surface and lift it off the scalp.
Roller sets differ by model, so check what’s in the box before you plan a style. BaBylissPRO’s 30-piece BABNTHS40 set carries eight jumbo 1½-inch (38 mm) rollers, eight large 1¼-inch (32 mm), eight medium 1-inch, and six small ¾-inch. The five-roller BABNTTS7 set is jumbo-only at 1½ inches, and the BAB3031DA packs 30 rollers across four metric sizes. Wider sections than the roller can hold block even heating, so match the section width to the barrel.
Fine, bleached, or color-treated hair belongs on the low setting; thick hair can take high.
How Do You Roll Them for Lift?
Comb the hair completely, then section from the crown downward toward the nape and wind each section upward from the ends. Hold the strand taut as you roll, keep the roller at a right angle to the scalp, and clip it in place.
Concentrate the jumbo rollers on the crown and top sections — that’s where volume reads from the front. Keep every heated surface clear of your face, ears, neck, and eyes, and grip rollers by their ends rather than the hot center. Load the unit with the lid closed;
Once every roller is in, switch the unit off and unplug it. A set that fits your hair type makes the sectioning easier — this roundup of large hot rollers for volume covers set sizes and barrel options.
| Roller Size | What It Creates | Best Placement |
|---|---|---|
| 1½ inch (38 mm) | Loose waves and maximum root lift | Crown and top sections |
| 1¼ inch (32 mm) | Soft, voluminous curls | Upper sides and back |
| 1 inch (25 mm) | Defined medium curls | Mid-lengths |
| ¾ inch (19 mm) | Tight curls | Ends and face-framing pieces |
| Damp hair | Holds shape without steaming | Every section |
| Wet hair | Weak set, slow drying | Avoid entirely |
| 10–15 minutes | Standard cooling window | All rollers, before removal |
How Long Should You Leave Them In?
Leave the rollers in for roughly 10 to 15 minutes for everyday styling, and longer if you want a more defined, longer-lasting curl. The hair has to cool completely before it holds the shape, so patience here pays off more than extra heat does.
Remove each roller only after it’s cool: hold the barrel, take off the clip or pin, and unwind slowly without tugging. Let the hair spring back on its own, then separate the curls with your fingers. Brushing hard right after removal flattens the lift you just built.
The BaBylissPRO manuals flag the mistakes that undo a good set — wet hair, an open lid during heating, sections wider than the roller, and pulling rollers out early. Treat each model’s manual as its own document too, since voltage requirements and heat-up times change from one set to the next.
Common Questions
Can I use hot rollers on wet hair? No. The manufacturer guides specify damp hair, never wet, because soaked strands steam under the roller and lose the set quickly. Towel-dry first and let the hair air-dry until it feels slightly damp to the touch before you start winding.
Do I need to unplug the unit while the rollers are in? Yes. Turn the appliance off and pull the plug once every roller is placed, and never leave it unattended while switched on. Let the unit cool completely before you store it away.
How many rollers should one section use? Normally one. Keep each section about as wide as the roller itself; oversized sections sit loose on the barrel, heat unevenly, and produce less lift than a snug, tidy wrap.
Sources
- BaBylissPRO. “Important Safety Instructions — BABNTHS40.” Supports roller sizes, two heat settings, and five-minute heat-up.
- BaBylissPRO. “Important Safety Instructions — BABNTTS7.” Supports the five jumbo 1½-inch roller configuration and voltage check.
- BaBylissPRO. “Professional 30pc Multi-Size Hot Roller — BAB3031DA Instruction Booklet.” Supports the 5–10-minute heat-up window and sectioning guidance.