Canvas Head for Wig Making Poly Mannequin Canvas Foam Block Head 21", 22", 23", 24", 25" hair extensions tools

1) Outside's Material: Canvas 2) Filling Material: Polyurethane 3) The neck's length: 6cm or so 4) Cancas Head's height: 30cm or so 5) Available Colors: Off-white, White, Black 6) Available Size(circumference): 21inch, 22inch, 23inch, 24inch, 25inch 7) Customized Size's minimum quantity: 500 pieces of each color