Mushroom Head, Operator Size 2.25 in dia, Color Red, For Use With Mfr. No. 9001KR25 and 9001SKR25, Size 30 mm, Basic Material Plastic, Non-Illuminated, Head Material Non-Metallic, Connection Type Screw On, NEMA Rating 1, 12, 3R, 4, 4X, IP Rating 66, Standards CE, CSA, UL, Includes Set Screw