DescriptionThese hard hat protection kit including chin strap, hat strap and safety hat insert can be a good choice to protect when wearing safety hat outdoor. Made of premium materials, these protection kit is light weight, breathable and comfortable for long term using. Owning good protection effect, offer you more satisfying using feeling.Features-Color:As Shown -Material:Rubber, nylon, ABS -Size:66.00X3.50X0.30cm/25.94X1.38X0.12in -Size:12.50X10.20X0.80cm/4.91X4.01X0.31in -Size:50.00X5.00X4.00cm/19.65X1.97X1.57in - These hard hat protection tools are made from premium materials, can withstand more impact, durable for long period using. - The proper size of the helmet bumper liner fits most helmets and can give you good using feeling. - Effective protection from bumps, scrapes, and other heads injuries, the safety hat sponge liner has excellent protection effect. - Helmet chin buckle, gear tightening, not easy to loose, suitable for safety chip strap use. - This protection set for hard hat is suitable for car assembly, maintenance, mechanical processing, industrial manufacturing and more fields.