Fits on Models: R300, R300 Series B, R300 Series C, R301 Dice Ultra, R301 Series D, R301 Ultra, R301 Ultra Series B, R301 Ultra Series C, R301 Ultra Series D, R301-DICE, R401 Series A, R401 US, R402 Series A, R402 V US, R502 Series E, R602 Series E, R602 V Series E, R602 V.V. Series F, R6N Series D, R6VN Series D, CL-50 E