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Ruler Knob

Use on almost any flat ruler. Makes ruler pickup and placement easy. Helps steady ruler. Rigid knob attaches with super strong black suction cup.

  • 915 Washington Avenue, Detroit Lakes, MN 56501 - Phone: (218) 844-5260
  • In-Store Shopping and Curbside Pickup Hours: Friday 10-5 & Saturday 10-2
  • Online Shop Open 24/7 - Orders Shipped Same or Next Day
  • Facebook Live Shopping: Tuesday 7PM Central Time