The P4/27 Pineapple Wave Human Hair Frontal Wig likely refers to a specific style of wig
  1.Send Length – Choose the hair length you want, typically ranging from 8 inches (short bob) to 30+ inches (waist-length and beyond). The longer the hair, the more volume and weight it has.
2.Head Size – Measure your head circumference to ensure a perfect fit:
•Small: 20-21 inches
•Medium (Standard): 21.5-22.5 inches
•Large: 23-24 inches
3.Lace Type & Size
•Frontal Lace: Covers the entire front hairline for a natural look.
•13x4: Covers ear to ear with a 4-inch deep parting.
•13x6: Similar to 13x4 but with a deeper 6-inch parting, offering more styling flexibility.
•Closure Lace: Covers a smaller section, great for a simple, natural look.
•4x4: Basic closure with a centered or side part.
•5x5: Slightly wider, allows for more styling options.
•7x7: Largest closure, offers more parting space while maintaining a closure’s convenience.