Keep pool water at just the right temperature for friends and family with this Mainstays Floating Crab Thermometer for Spas and Pools. The Mainstays Floating Crab Thermometer for Spas and Pools provides quick and accurate temperature readings at a glance. Keep your pool water comfortable for hours of summertime enjoyment. Made out of durable plastic and a glass-encased thermometer, this fun pool thermometer lasts from season to season and helps you maintain pool water at the perfect temperature for your guests. With its bright red color, the Mainstays Floating Crab Thermometer for Spas and Pools helps you easily discern the water temperature with a quick glance.