1Designed with reference to the human foot, it can fully support the entire upper in multiple directions. 2Ventilation hole design, breathable, prevent shoes from moldy in humid weather. Mellow and plump heel area, more supportive. 37gear length adjustment, the length of the shoe stretcher can be adjusted freely, suitable for shoes of various sizes. 4You don't need to reach into the shoe for support, use the shoe stretcher to support the shoe, and then you can polish the shoe. 5Made of high quality PP material, safe and ecofriendly, nontoxic, firm and durable for long term use.