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"When you really want to make a RAKIT®, customize your RAKIT® with our exclusive scratch-resistant beads. Our beads create a “shaker-effect” and are designed to maximize the RAKIT® you make. Each tube contains 90 translucent, acrylic beads specifically designed to best reflect the LED lights.  Choose your colors and start making a RAKIT®!  Use only RAKIT®-approved beads. Other beads and objects can cause scratches to the inner walls of the RAKIT®.  We recommend using only two to three tubes of beads at one time with your RAKIT® as any more might cover up your insert design.  Check back soon! More exclusive RAKIT® beads coming soon - glow in the dark, disco, glitter, and more!"
<https://www.myrakit.com/products/beads?variant=30106233012288>