Usongs 31 Hole Vents Bike Cycling Bicycle Adult Safety Helmet Orange with Adjustable Rotary Internal Regulator & Hair Band & Measuring Tape Material: Plastic And Foam Color: Orange Hole: 31. Weight: 8.85 oz / 251 g Dimensions: 10.62 x 8.66 x 5.51 " / 27 x 22 x 14 cm ( L x W x H ) Come with 1 usongs brand black elasticity hair band (towel material), 1 random color keychain retractable measuring tape