The Retgrip is an accessory for the Modusworks Retcore Spinner. Printed out of TPU, the Retgrip allows you to forgo the foam spacers needed to hold the bearing balls in place. The Retgrip holds them tight enough where the balls don't shake or move, but still allows you to rotate the balls by hand for a silent fidget. It also adds a splash
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Retgrip
Great addition to the rercore. Makes it easy to center the balls and removed some sharp edges.
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Bryan · January 30, 2026
These RetGrips are must-haves for RetCore spinners, and the available colors is crazy good.
