Hair Length: 22 inches (about 56cm,we are chinese seller); With clamp, pole stand is not included, Attention: Do not blow hot over 120 degree temperature on the hair, perm can't be exceed 15 seconds every time, Super thick long hair; 230-260 Implants per sqcm; Head Size: approx 11.5 x 24.5cm, Suitable for cosmetology students or anyone to practice straighten, curl, cutting, braiding, setting; Not suitable for marcel and dyeing, It can be washed with shampoo, blow dry; Attention: For first used, pls comb from the hair bottom to above. It is common for lossing a little hair first time and won't happen the next