The 300 Sawtooth Picture Hangers 1 5/8" Inch Without Nails is a pack of small hangers designed for hanging pictures or frames. Each hanger is 1 5/8 inches in size, making them suitable for a variety of weight capacities. The product does not come with nails, allowing for easy installation without damaging the walls. It is important to note that this product is not suitable for everyone due to the California Prop 65 Warning regarding potential chemical exposure.