4D U Lashes are designed as precision premade volume fans, featuring four ultra-soft PBT fibers arranged in a parallel, evenly spaced structure to form a clean U-shaped profile. This uniform alignment ensures consistent fan symmetry, stable base integrity, and effortless application, significantly improving efficiency compared to handmade volume fans. Made from premium round PBT fibers, these lashes offer lightweight flexibility, reliable curl retention, and a soft-touch finish, creating a naturally fuller yet well-defined lash line.
| Lash material | PBT fibers |
| Color | Black |
| Length | 8-15mm |
| Thickness | 0.07mm |
| Curl | All curls available |
| Rows | Customizable / 12/14/16rows |
| MOQ | 20 each sizes |