It features a totally smooth underside ring path designed to glide across standard circular roller support wheels. Sharp Models: R-200K, R-200L, R-201T, R-210A, R-221K, R-222T, R-230L, R-231F, R-231Z, R-240A, R-290NS, R-291ZST, R-2A54, R-2A55, R-2G54, R-2J28, R-2S56, R-2S58, R-3A52, R-3A53, R-3E52, R201FK, R202EK, R206FW, R2130AW.
