Description
1 4 in Depressed Center Wheel Type 27, 4 1 2 in dia, 7 8 in Arbor, A24R ORS NASCO wax based formula Conditions as it cleans Suitable wax based formula Conditions as it cleans Suitable for most surfaces Larger surface area means more air flows in and out of the mask without a valve Durable Dura Mesh® shell prevents collapsing from heat and humidity FlexFit® design fits the contours of the face and mouth for comfortable extended wear Soft foam nose cushion and pinch free nose bridge