Samples let partners evaluate the product itself, but what they ultimately consider is whether the brand sells, how much profit it generates, and what promotion investment it requires. To get serious evaluation, you typically need: First, a clear MSRP and profit structure for each channel tier so they can calculate the earnings potential. Second, product instructions, educational materials, or training videos that lower the partner's cost of consumer education. Third, after-sales service details—return policies, warranty terms—so they're not worried about abandonment when facing consumers. Fourth, brand positioning and target consumer description to help them determine which shelf or customer segment your products fit. With these materials ready, they can actually conduct internal evaluation instead of leaving your sample on a desk waiting for the next trade show.