High Speed Jump Rope Version:3D Printed those impossible to open nail-breaking

those impossible to open nail-breaking rings which force your keys into an unruly spiky ball

V4 is heavy and dense

Adjust magnet detent

but make sure you keep snapping so it stays sharp

Think of this as an awesome looking cheat sheet to turn your body into a measuring device

High Speed Jump Rope Version:3D Printed those impossible to open nail-breakingThis project is a Prerelease. Objective: Make the ultimate speed jump rope. Release 06 11 2019 : JRHSV33 Initial Release Materials: Handle: Durable Resin + Ball Bearing Rope: Stainless Steel + PVC This jump rope has ball bearings for an ultra smooth fast spinning rope. The perforated grip allows air to get to your sweaty hands. The rope length is locked in with a tool less rope adjustment mechanism. This 1 8" rope has a stainless steel aircraft cable