Black Box 1-800-316-7107

Helping you is our priority at Black Box.

We're committed to providing the best customer service in the industry. We're here for you, 24/7, 365.

We'll call you

A technical expert will call you shortly.

Submit Connecting call...

Call Us

Customer Sales & Service Support

Black Box Brand Product Support

IT Services & Voice Support

Send us a FAX


OPTISOK, Small, 0.13"—0.8" (0.33–2.03 cm)

Get a grip! Pull cables easily through conduits.


Please call 877-877-2269 for a replacement product or part.
Lifetime Double Diamond™ Warranty (Standard)

Product Features

  • Pull terminated fiber optic cables, jumpers, and bundles of twisted-pair cable.
  • Choose from three sizes to pull small to large bundles of cable.
  • Guaranteed for life!


  • Flexible, nonmetallic sleeve expands to grab and pull cables through restricted spaces.
  • Grips the cables firmly, so you can attach the ring to a pulling line.

  • Tech Specs

    CE Approval Yes
    Dimensions FT351: 28"L (71.1 cm) FT352: 31"L (78.7 cm) FT353: 33"L (83.8 cm)
    Maximum Working Load FT351: 30 lb. (13.6 kg) FT352: 40 lb. (18 kg) FT353: 50 lb. (22.7 kg)

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.




    Double Diamond Warranty Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The OPTISOK, Small, 0.13"—0.8" (0.33–2.03 cm) comes with a standard Lifetime Double Diamond™ Warranty (Standard) already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.