Ceramic Coral Frag Plugs / Disks / Base With Free Reef Glue Gel Awesome Aquatic Frag Plug Frag Plate Frag Disc. 100% AQUARIUM SAFE Solid High Quality Natural White Ceramic Frag Plugs will not create grit or dust. High Temperature Kiln firing Produces a durable and safe product that will not affect water quality. Awesome Aquatic Frag Plugs are heavy giving your coral a solid stable place in your rack or on the reef itself. Great for SPS, LPS, Zoa's etc. The Porus and Textured surface provide strong glue or reef putty grip to keep the frag in place and safe. Standard plugs are 24 mm ( 15/16” ) round with a 10 mm ( 3/8” + ) stem. These easily fit in eggcrate, racks and your live rock cracks and crevices. Flat Discs / Disks are 70 mm ( 2-3/4”) Round 6mm ( 1/4“ ) thick NO stem. Great for larger or heavier corals or ones you want to grow out bigger. They have a Great stability with a bigger footprint. Free Coral Frag Glue Gel