Storage & Table Borosilicate, oven-safe, lids that lock on four sides Ten containers that go from the freezer to the oven to the table, with lids that clamp on all four edges instead of just pressing on. Borosilicate glass Handles the thermal jump from fridge to oven without cracking. Four-point locking lids Clamps on every side, with a silicone gasket. It will not leak in a bag. Oven safe to 425°F Reheat the leftovers in the dish you stored them in. Stain and smell proof Glass does not hold tomato colour or curry smell the way plastic does. 01 — The glass Why borosilicate matters Ordinary soda-lime glass can crack going from cold to hot. Borosilicate has a much lower expansion rate, which is what makes fridge-to-oven safe rather than a gamble. 02 — The lids Four clamps, one gasket Press-on lids fail in a bag. Four clamps pull the gasket down evenly, so soup travels upright or on its side. 03 — The set Ten pieces, five sizes Two of each size, because you never need just one. Nest empty, stack full. The details Pieces 10 containers plus lids Material Borosilicate glass Lids BPA-free, four-point lock, silicone gasket Oven safe Up to 425°F / 220°C, without lid Freezer Safe Dishwasher Safe Warranty 2 years