1-inch square lock buckle: inner diameter width 25MM, POM material, straight pull force 90KG, ring pull force more than 350 pounds, the product is slightly arc-shaped, the surface of the mother buckle is equipped with a square lock piece that can be pushed up and down, the lock piece can be pushed up to lock the buckle and cannot be pressed, the lock piece has an anti-slip bar to enhance the push-lock feel. The mother buckle frame can be customized with a LOGO.