Metal Side Release Buckles: Great for all of those straps to clip, like back packs, side packs& front packs! Nice soft and smooth edges, with a professional finish. Sold individually (1 per package) *** These buckles are not meant for children's wear, but for bags and handbags for adults. They contain small parts. Although they can be used for dog collars, they are not rated for outdoor wear and tear, nor are they weight test rated. Please check for security and wear before using on dog collars.