Ocean Wonders LARGE CERAMIC Coral Frag Disks 1.5″, 15 pcs.Oceans Wondersceramicreef plugs, disks and tilesare a great choice for the hobbyist who is looking for a super strong baseto attachtheir frags to. Ceramic frag mounts are fired at nearly 2000 degrees in a high temperature kiln making them 100% inert and safe. They never have to be cured and are shipped dry, ready to use.Ocean Wonders LARGE CERAMIC Coral Frag Disks 1.5″, 15 pcs.Oceans Wondersceramicreef plugs, disks and tilesare a great choice for the hobbyist who is looking for a super strong baseto attachtheir frags to. Ceramic frag mounts are fired at nearly 2000 degrees in a high temperature kiln making them 100% inert and safe. They never have to be cured and are shipped dry, ready to use.Product code: 4836Item No. AC-OW062141