Two horseshoe crabs rendered in detailed stippled ink occupy a cream ground, their shells articulated with careful cross-hatching that reveals the creatures' segmented anatomy and spiny undersides. The composition balances the creatures vertically, with one positioned upright and the other inverted, creating a naturalistic study that suggests scientific observation paired with careful draftsmanship. Built from double-wall stainless steel and made to order, holding 20 ounces with a snap-on lid, a standard-cup-holder fit, and wraparound artwork. Your commute carrying original art instead of another branded tumbler.