The Ripple Mark Pen Size_5.5" x 6" x 2.75" | 140 x 152 mm Before you leave on your

Before you leave on your next mushroom hunt

or chilling at the petting zoo

or sketch up probabilistic graphical models in this dusty teal notebook

or keep track of your week while musing on your favorite 8-legged ocean-dwellers

Soar through your meal prep with this ornithology-inspired tea towel close at hand

The Ripple Mark Pen Size_5.5" x 6" x 2.75" | 140 x 152 mm Before you leave on yourRipple marks are patterns left below moving water or wind, and by studying them, scientists can learn a lot about the area's geography. These patterns can tell us about the depth of water above the ocean floor or riverbed, which direction the flow of water or air was going, how fast, whether there were waves or storms, and a whole lot more. The Ripple Mark is a capped metal body pen with textures reminiscent of ripple marks. Use it to conquer your