Sphero Coding Robots & Kits | PK-12 STEM Education, AI

Blueprint Pulley Packs

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$6.7 $10 In stock

The Sphero Blueprint Pulley Packs are replacement accessories designed to keep your engineering projects moving. Each pack includes ten pulleys of a single size, allowing you to stock up or replace worn parts as needed. Choose the diameter that fits your build.

  • Available in three size options: 30mm, 45mm, and 90mm pulley packs.
  • Each pack contains ten pulleys for multiple builds or replacements.
  • Compatible with Sphero Blueprint Engineering kits and activities.
  • Simple accessory to support hands-on STEM learning and prototyping.

Customer Reviews (5.0 / 5 · 5 reviews)

Samuel F. ★★★★★

Ten pulleys in one pack means I'm not scrambling mid-build when one goes missing, which happens more than I'd like to admit. They fit the same mounts as the originals and spin just as freely.

Nicholas A. ★★★★★

I snapped one of these onto a replacement arm after a pulley cracked mid-build, and the fit was identical to the originals. Having ten of the same size in one bag means I'm not digging through mixed parts next time something wears out.

Natalie ★★★★★

Ten pulleys in one pack is way more than I expected for the price. The grooves are clean and the wheels spin freely, so swapping out the worn ones on our build was painless.