Komax Biokips Ice Cube Trays With Locking Lid | [4-Pack Set] Small Ice Cube Trays With Lid | Ice Cube Maker for Cool Drinks, Bourbon, Whiskey & Cocktails | FDA-Approved & BPA-Free Ice Cube Mold TrayPERFECT ICE CUBE TRAYS Komax Biokips ice cube trays are the perfect set to make square ice cube molds. The four trays in the package fit twenty one ice cubes each. Made of high density polyethylene (HDPE) which is most durable, food grade and hygienic. Biokips products are renown for their amazing durability and style, and awarded one of the most prestigious design prize in the world, the "Red Dot Design Award". BETTER THAN SILICONE Silicone ice trays