Susato Thumb-Rests are available in seven sizes, numbered:  0, 1,  2,  3,  4,  5,  6,               Number -0- fits all Susato -V- series whistles and most Sopranino recorders.                               Number 1 fits all Susato -S- series whistles.  Number 2 fits some Soprano recorders, some Soprano recorders need thumb-rest number 3. Number 3 also fits all Susato -M- series whistles. Number 4 fits all Susato -LX- and -L- series whistles. Alto recorders need either number 4 or number 5.  The largest, number 6, fits most Tenor recorders. Susato Thumb-Rests are available in colors of: Black, Rosewood-Brown, Ivory and Clear. Please note size 0 in clear is unavailable. The Price is $2.00 for one, $5.00 for any combination of 3, or $8.00 for a set or combination of 7 sizes.