《4-WAY ADJUSTABLE SHOE EXPANDER》：Stretch width to widen shoe. Flip the black knob clockwise to stretch the length and width of the shoe tree. Boot stretche length and width, can alone adjustable. 《VARIOUS SHOES》 : Heavy-Duty shoe spreader perfect for use with leather and suede footwea for leather, suede footwear, cowboy boots, calf boot, sneakers, hiking boots for with laces or zippers boots, not for other boots. 《SHOES SIZES》 : Shoe stretcher suitable Men's: 5-6.5 Women's: 4-7.5/Men's: 7-8 Women's: 8-10.5/Men's: 8.5-12 Women's: 11-13 shoes size. 《MATERIAL》 : Boot stretchers for cowboy boots are made out of premium ABS plastic material with a strong steel shaft. 《USE METHOD》 : Simply Insert shoe stretcher into shoes, flip the black knob clockwise to stretch the length and width of the shoe tree, leave for 24-48 hours, the shoes will stretch.