One (1) fountain pen ink sac sack bladder, sizes 12 to 24, choice or mix & match
USD 9.50 USD
Specifications
| Size | 12 straight |
| Brand | Unbranded |
| Pen Type | Fountain |
| Material | Rubber |
| Country/Region Of Manufacture | United States |
NOTE: sacs between #16 and #18 are the most widely used. #16 tapered is special-purpose, for Eversharp Skylines and Parker squeeze-style converters. #14 and #15 are the usual sizes for smaller and slenderer pens, while large pens such as Parker Duofold Seniors will take sacs from #21 and up.Sheaffer PFM and thick-barreled Touchdown pens (first-year and Tuckaways) use #17½ necked sacs; #15 is the size for slender Touchdowns, while Snorkels take #14.
