Brook and Brian help Marc vet four new products: a ratchet tool that gives you 5x the power with 5x the speed, an efficient portable solar cooker, the safest boat in the world and an archery training system that works without firing an arrow.

Experts Brook & Brian help Marc vet four big claims: the world's first dedicated survival flashlight, the first truly portable large drone, a drawing arm robot kit for kids and a device that makes caviar-like pearls out of almost any food.