★ Slim Inter-lockable design allow you to make cubes or build freezer wall to fit into all sizes of lunch boxes, bags and kids' coolers. The wide base and blue gel can retain and deliver more coolness to keep your food cool and fresh much longer. ★ Reusable and durable, BPA free hard plastic with staged-surface treatment to avoid deformation when frozen, more stronger than flat design and no worn out, quickly be frozen to reuse ★ Multi-occasions to use – cooling your food/snack/beverages in lunch bag; medicines storage and a great match with picnic basket, food trays on a camping, road trip, tailgating party, shopping grocery home or a portable air conditioner when you are crowded in the London Central line ★ Size: 13.8 x 13.8 x 1.5 cm /each freezer block; Weight : 120g / each freezer.
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