Description Precise-fit, single-ply collars feature a quick-release buckle for on-the-go ease. Constructed tough for even the most rugged terrain, these collars feature an anodized aluminum dee and box stitching at stress points.Small: 3/4" x 9" - 13".Medium: 3/4" x 13" - 19".Large: 1" x 17" - 25".