(Alden)     HP Sphere    (HP49,  HP59)   
Property ValueNotes
Base Curves 6.5 to 9.7mm 8.3, 8.6, 8.9 suggested  
diameter 10.0 to 16.0mm.... 14.5 suggested
sphere powers -30  to +30D 0.25D steps
qty single vial and 4 pack
Mode DW
Replacement Quarterly Replacement
Material        HP 49:    Hioxifilcon B   49% H2O  
or  HP 59:    Hioxifilcon A   59% H2O
Group   HP 49:    I,   low water - nonionic    
   HP 59:    II,   high water - nonionic   
Man. Process lathe cut
DK 15 and 24 respectively
ct 0.1mm @ -3.00
OZ varies with diam and power
Tint visibility extra chg
Various solid and prosthetic tints available