This is normal. As you cut through the media to be cut, a strange grinding noise will be heard and your blade will dig into the mat. It's almost like there's a middle layer underneath and it's slate or 200 grit sandpaper. They're not the best at self-healing either. I have another rug that I have had for years and it has almost none of the damage that this one does after a month of use.
Clear 1-? X 12-Inch Omnigrid Ruler For Precise Quilting And Sewing
13 Review
4-Pack Omnigrid Square Quilting Ruler Set: 2.5โ, 4.5โ, 6.5โ And 9.5", Value Pack
12 Review
Triangle Group TR259 225/65 R17 106V summer
55 Review
Purely Natural All-Season Quilt Batting: PLANTIONAL Cotton Batting For Quilts, Crafts, And Wearable Arts - 47" X 59" Light Weight
26 Review
๐ Tulip One-Step Tie-Dye Kits Rainbow - 5 Colors, 1.62oz
7 Review
๐ 100 Pack of Assorted Colorful Adhesive Stick-On Heart, Star, and Round Shaped Jewel Gems for Arts & Crafts, Themed Party Decorations, Children's Activities - Super Z Outlet
7 Review
Easter Egg Decoration Kit: Lot of 5 Heat Shrink Wrap Sleeve with Flowers and Icons for 35 Eggs
8 Review
Coolrunner Mixed Food Resin Flatback Kawaii Cabochons Decoden (60) - Adorable Assortment of Miniature Treats for DIY Crafts and Decor Projects
9 Review