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Slime Senpai

Supermassive Black Hole

Supermassive Black Hole

Regular price $15.99 USD
Regular price Sale price $15.99 USD
Sale Sold out


  • 7oz size
  • Texture: Coated black and various colored bingsu
  • Fragrance: Champagne Toast (BBW)
  • Comes with color shifting star charm
  • Level: Intermediate


Please read before you purchase.

All sales are final due to the nature of the product. DO NOT EAT. Slimes may contain small parts. Please keep away from small children, pets, and furniture/fabrics. Handmade slimes melt overtime and require periodic activation.

All orders are provided with borax powder to make your own activator. Or you may purchase pre-made activator spray from our site. Slimes have a limited lifespan and eventually dry out with excessive play.   Adding small amounts of glycerin can soften up tough slime.  You may purchase a 15ml bottle of glycerin from our site. Please review our "Slime Care" webpage for more information or contact us at

The consistency of the slime upon arrival may be different from the picture due conditions beyond our control such as long delivery time, the temperature, handling, etc.  Allow your slime time to cool off during the summer.  You can put it in the fridge to speed up the process.

Please note that due to lighting effect, the actual colors may be slightly different from the picture. Also, the colors may mix during transit.

Main ingredients: Glue, borax, sand, food coloring, and fragrance oil.

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Customer Reviews

Based on 1 review
Amanda Wolfe
Black Hole Slime

This is a really awesome slime. It inflates a ton, I actually needed two spare containers for overflow. It's super crunchy and crispy and makes good bubble pops. It's even prettier in person! It's very sparkly. The scent smells like berries and fresh air to me, it's very nice.