DescriptionSuch a pair of excellent shoes insoles is necessary item when you need to conduct special work. These shoes insoles use manganese steel materials, not easy to rust, deform or break, can provide you a very comfortable feeling when wearing. Suitable for sports shoes, sneakers, to meet your various demands.Features- Color: Black -Material:Manganese steel- Size (42 yards): 27.00X8.90X0.10cm/10.61X3.50X0.04in-These shoe insoles provide feet protection for your daily walking and sports use, has good anti-nail and puncture resistant effect.- Adopting sturdy manganese steel materials, the boot insoles can offer superior protective performance.-Practical shoe insert for men can fit for any industry, such as construction, manufacturing, agriculture, forestry, etc, serve you better.-Light weight, these manganese steel insoles for men are easy to use and insert, will not deform, rust or break.-Turn your daily shoes into puncture-proof work boots, hiking boots, safety shoes and professional shoes easily.