3/8" diameter (10mm) > Internal Thread

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16g Titanium Circular Barbell (internal)
16g Titanium Circular Barbell (internal) Circular Barbells 16g - 1/4" diameter (6mm) - 3mm balls High Polish (silver)

16g Titanium Circular Barbell (internal)

ICRT-16063
1/4"-1/2"
 15 colors
$8.98
each
10g Titanium Circular Barbell (internal)
10g Titanium Circular Barbell (internal) Circular Barbells 10g - 5/16" diameter (8mm) - 5mm balls High Polish (silver)

10g Titanium Circular Barbell (internal)

ICRT-10085
5/16"-7/8"
$16.98
each
8g Titanium Circular Barbell (internal)
8g Titanium Circular Barbell (internal) Circular Barbells 8g - 3/8" diameter (10mm) - 5mm balls High Polish (silver)

8g Titanium Circular Barbell (internal)

ICRT-8105
3/8"-15/16"
$24.98
each
16g Stainless Circular Barbell (internal)
16g Stainless Circular Barbell (internal) Circular Barbells 16g - 1/4" diameter (6mm) - 3mm balls Stainless Steel

16g Stainless Circular Barbell (internal)

ICRS-16063
1/4"-15/32"
$6.98
each
12g Titanium Circular Barbell (internal)
12g Titanium Circular Barbell (internal) Circular Barbells 12g - 5/16" diameter (8mm) - 4mm balls High Polish (silver)

12g Titanium Circular Barbell (internal)

ICRT-12084
5/16"-5/8"
$12.98
each
14g Titanium Circular Barbell (internal)
14g Titanium Circular Barbell (internal) Circular Barbells 14g - 1/4" diameter (6mm) - 4mm balls High Polish (silver)

14g Titanium Circular Barbell (internal)

ICRT-14064
1/4"-9/16"
 15 colors
$8.98
each
6g Stainless Circular Barbell (internal)
6g Stainless Circular Barbell (internal) Circular Barbells 6g - 3/8" diameter (10mm) - 6mm balls Stainless Steel

6g Stainless Circular Barbell (internal)

ICRS-6106
3/8"-1"
$13.98
each
8g Stainless Circular Barbell (internal)
8g Stainless Circular Barbell (internal) Circular Barbells 8g - 3/8" diameter (10mm) - 6mm balls Stainless Steel

8g Stainless Circular Barbell (internal)

ICRS-8106
3/8"-1"
$11.98
each
16g Spiked Titanium Circular Barbell (internal)
16g Spiked Titanium Circular Barbell (internal) Circular Barbells 16g - 5/16" diameter (8mm) - 3x3mm cones High Polish (silver)

16g Spiked Titanium Circular Barbell (internal)

ICRTC-16083*
5/16"-3/8"
 15 colors
$10.98
each
8g Black Circular Barbell (internal)
8g Black Circular Barbell (internal) Circular Barbells 8g - 3/8" diameter (10mm) - 6mm balls Black Stainless

8g Black Circular Barbell (internal)

ICRB-8106
3/8"-5/8"
$8.98
each
10g Stainless Circular Barbell (internal)
10g Stainless Circular Barbell (internal) Circular Barbells 10g - 5/16" diameter (8mm) - 4mm balls Stainless Steel

10g Stainless Circular Barbell (internal)

ICRS-10084
5/16"-5/8"
$9.98
each
14g Spiked Titanium Circular Barbell (internal)
14g Spiked Titanium Circular Barbell (internal) Circular Barbells 14g - 3/8" diameter (10mm) - 4x4mm cones High Polish (silver)

14g Spiked Titanium Circular Barbell (internal)

ICRTC-14104*
3/8"-1/2"
 15 colors
$10.98
each
12g Stainless Circular Barbell (internal)
12g Stainless Circular Barbell (internal) Circular Barbells 12g - 5/16" diameter (8mm) - 4mm balls Stainless Steel

12g Stainless Circular Barbell (internal)

ICRS-12084
5/16"-1/2"
$7.98
each
16g Stainless Circular Barbell by Body Circle Designs
Sale
16g Stainless Circular Barbell by Body Circle Designs Circular Barbells 16g - 1/4" diameter Stainless Steel

16g Stainless Circular Barbell by Body Circle Designs

BCDCRS-1606
1/4"-1/2"
$28.98
$21.74
each
14g Stainless Circular Barbell (internal)
14g Stainless Circular Barbell (internal) Circular Barbells 14g - 5/16" diameter (8mm) - 3mm balls Stainless Steel

14g Stainless Circular Barbell (internal)

ICRS-14083
5/16"-5/8"
$6.98
each
16g Titanium Circular Barbell (internal, no ends)
16g Titanium Circular Barbell (internal, no ends) Internal Barbells 16g - 1/4" diameter (6mm) High Polish (silver)

16g Titanium Circular Barbell (internal, no ends)

ICRT-1606BB
1/4"-1/2"
$4.98
each
8g Titanium Circular Barbell by Anatometal
00g Titanium Circular Barbell by Anatometal Internal Barbells 00g - 9/16" diameter (14.3mm) Barbell Only (no balls)

8g Titanium Circular Barbell by Anatometal

AL-CRT808BB
5/16"-1"
from $26.60
each
16g Prong Stone Titanium Circular Barbell
16g Prong Stone Titanium Circular Barbell Circular Barbells

16g Prong Stone Titanium Circular Barbell

CR298-AM
3/8"
 8 gemstones
$13.98
each
6g Titanium Circular Barbell by Anatometal
00g Titanium Circular Barbell by Anatometal Internal Barbells 00g - 9/16" diameter (14.3mm) Barbell Only (no balls)

6g Titanium Circular Barbell by Anatometal

AL-CRT610BB
3/8"-1"
from $44.60
each
10g Titanium Circular Barbell by Anatometal
00g Titanium Circular Barbell by Anatometal Internal Barbells 00g - 9/16" diameter (14.3mm) Barbell Only (no balls)

10g Titanium Circular Barbell by Anatometal

AL-CRT1008BB
5/16"-1"
from $23.20
each