4lb test Fireline is great when you're working with small beads like charlottes or 15/0 seed beads.  Choose from crystal and smoke. 

FL04CR125 - 4 LB Test Fireline Crystal .005 In/.12mm Dia, 125 Yards | 1 Spool
Sale
Berkley
$40.88 $20.44
FL04CR125 - 4 LB Test Fireline Crystal .005 In/.12mm Dia, 125 Yards | 1 Spool
FL04CR50 - 4 LB Test Fireline Crystal .005 In/.12mm Dia, 50 Yards | 1 Spool
Sale
Berkley
$15.75 $7.88
FL04CR50 - 4 LB Test Fireline Crystal .005 In/.12mm Dia, 50 Yards | 1 Spool
FL04SG125 - 4 LB Test Fireline Smoke Grey .005 In/.12mm Dia, 125 Yards | 1 Spool
Sale
Berkley
$40.88 $20.44
FL04SG125 - 4 LB Test Fireline Smoke Grey .005 In/.12mm Dia, 125 Yards | 1 Spool
FL04SG50 - 4 LB Test Fireline Smoke Grey .005 In/.12mm Dia, 50 Yards | 1 Spool
Sale
Berkley
$16.80 $7.56
FL04SG50 - 4 LB Test Fireline Smoke Grey .005 In/.12mm Dia, 50 Yards | 1 Spool