Mini Salt Block Holder features rounded edges for animal safety and it's durable impact resistant poly construction with UV protection ensures this salt block holder will hold up to years of use in harsh elements. Allows for convenient placement of 4lb mini salt or mineral blocks on stall wall, fence lines and most flat surfaces. Keeps the salt or mineral block off the ground where it's more accessible to animals. The wrap around design with drain holes at the bottom helps minimize exposure to the elements and prolong the life of your salt or minerals. Blue color.