short inch need 1 set, long inch 2 sets are better.

1) Material: 100% human hair
2) Color:   natural color

3) Length: 8-24 inch

4) Weight: about 120gram per set

5) Texture: yaki 
6) Style: Clip in hair extensions

SET INCLUDES:

8pcs/Set (8 inch to 20inch):                                                

1 x 10" wide weft (4 clips attached)                      

2 x 8" wide weft (3 clips attached)                    

4 x 3" wide weft (2 clips attached)                                    

2 x 2" wide weft (1 clip attached)                                      

No of Weft: 8                                                            

No of Clips: 18                                                                      

Set Weight: about 120g (include clips)