Peltor Optime 95 over-the-head, folding earmuffs feature a stainless steel headband for consistent force and effective hearing protection for noise levels up to 95 dBA. Stainless steel construction resists bending and warping. Cups fold up into the headband for compact storage. Earcup pivot points tilt for optimum comfort and efficiency. Lightweight design features liquid/foam-filled earmuff cushions. Noise Reduction Rating (NRR) is 21 decibels CSA Class B. One size fits most. Recommended applications include facility maintenance, grinding, machine operations, sanding, welding, demolition, painting, blasting, assembly and cleaning.