Product variant: 18 inch, 150 g, width 25 cm, color 10# Medium Golden brown Product overview This long wavy halo secret fish line hair extension is made from 100 percent human hair. It adds instant length and volume while blending naturally with your own hair. The halo design is easy to put on and comfortable for allday wear. Key features and benefits Real human hair: quality Brazilian human hair feels smooth and soft and moves naturally like your own hair. Style with heat tools, curl, or dye to match your look. Instant volume and length: 150 g at 18 inch provides noticeable thickness and long length without the wait for hair growth. Easy to wear: Halo crown design slips on in under a minute. Secure with a tail comb and pull your hair over the for immediate results. Natural appearance: 25 cm width creates a seamless blend at the crown for a realistic finish. Durable and breathable: Human hair construction offers better breathability and longer life than synthetic alternatives when cared for properly. Available sizes, weights, and colors Length and weight options: 12 inch 100 g, 14 inch 120 g, 16 inch 140 g, 18 inch 150 g, 20 inch 160 g, 22 inch 170 g. Weight tolerance: plus or minus 12 g. Width: 25 cm (10 inches). Colors: 24 color options available. Shown variant is 10# Medium Golden brown. Color note: Natural black is the undyed natural color and can be dyed. Jet black refers to hair that has been dyed black and is not the natural base color. How to measure length 1. Straighten the hair so it is of curls or waves. Measure length when the hair is completely straight. 2. Place a ruler at the root of the hair. 3. Measure to the of the hair tip. Care instructions Wash gently with shampoo in cool or cold water. Air dry indoors; avoid heat when possible. Do not wash frequently; once per month is generally sufficient. With proper care the extension will retain appearance and longevity. Practical use scenarios Special occasions: Add instant length and fullness for weddings, parties, or photo shoots to achieve styled updos or flowing waves. Everyday styling: Use for daily volume boost and longer styles for work or casual outings without daily commitment. Quick transformations: Ideal for last minute changes before events when you need to be camera ready in minutes. What is included One long wavy halo secret fish line hair extension in the selected length, weight, width, and color. This product description reflects the specific variant 18 inch, 150 g, width 25 cm, color 10# Medium Golden brown and lists available size and color options, material, measurement method, and care guidance.