Traps solar energy to heat water and reduces evaporation by up to 95% .

Typically made of high-quality polyethylene (PE) that is UV-resistant and waterproof.

These are aesthetic protective cases for popular consumer electronics.

In a medical context, "heart covers" or supports are specialized surgical or post-operative tools.

Available at major retailers like Amazon , Walmart, and AliExpress .

This is the most common functional product. It is a thermal blanket with designed for heat retention and debris protection.

Devices like the HeartNet™ used by surgeons to position the heart during bypass procedures. 3. Tech & Lifestyle Accessories