1. 2.35lb Large Ice Block Tray: our large ice block tray measures 8"x3.9"x2.5" (inner size), making 2.35lb ice brick per tray, which means producing 9.4lb ice with 4 trays at a time, ensuring an ample supply of ice for ice bath, working perfectly as water chiller for cold plunge, a great cold plunge accessories for making ice at home for all your needs. 2. Keep your Ice Bath Colder and Longer: Due to the large size, the ice block produced by our ice block tray will last longer than those easy-melted and heated-up fast small ice cubes, ensuring the water reach to about 50 degrees with enough ice tray, enables you to enjoy a soothing ice bath for post-workout recovery, no need to add ice frequently. 3. Built to Last: Made of non-BPA and food-grade silicone, easy to demold, take it out of the zer, seperated the ice brick from four sides, it will pop out of the tray easily, you don't even have to let it sit for 15mins. It's also dishwasher , and stackable for saving space. 4. Cost Effective: No more going to the store to purchase ice anymore, a great investment for ice bath at home, and saving your effort of rushing to the store. Say goodbye to the never-ending cycle of disposable trays or buying bags of ice, and say hello to the ultimate ice-making solution at home.