Weaver Leather Miracle cribbing collar horse tack medium Weaver Leather Miracle Cribbing Collar and Cover Combo Carefully crafted from the highest quality harness leather for strength and gentleness to the hair coat. Eliminates the need and expense of other anti-cribbing products like paints, sprays, straps, etc. Leather connector strap helps keep browband in place and ensures that the Miracle Collar will not slide around or off and become ineffective.