Provide hours of reliable, ice-free cooling right on your benchtop with the reusable Cool Brick. This passive cooling block is designed to maintain a consistent temperature for an extended period, protecting your sensitive samples, enzymes, and reagents from warming. Simply freeze the brick overnight in a standard freezer to charge it. When used in conjunction with a compatible aluminum cooling chamber, it creates a versatile system for keeping a wide variety of samples cool and stable for hours of processing or transport. Key Features & Benefits Long-Lasting Passive Cooling: When pre-frozen, provides up to 10 hours of stable benchtop temperature control without the mess of ice. Maintains Specific Temperatures: Engineered to consistently hold a temperature of approximately 1°C, ideal for preventing enzyme degradation and preserving sample integrity. Simple and Reusable: Just freeze overnight in a standard freezer to recharge, offering an economical and eco-friendly cooling solution. Versatile System Component: Designed to be used with CoolSafe® boxes and interchangeable aluminum cooling chambers for tubes and plates. Rotational Use: Multiple bricks can be used in rotation to maintain the desired temperature for even longer experiments or all-day use.