Ceramic Weight Planting Rings for all Types of Aquatic Plants 10 Ring Pack Use for potting your own aquatic plants or cuttings, made from high quality ceramic material. Designed to keep aquarium weighted in the substrate. Great for Java Fern, stem cuttings and other live plants. Helps provide biological filtration for your aquarium and fish pond. Used with hydroponics and aquaponics. ? 10 Ring Pack ? Size 1/14 (29mm) diameter, Height 3/4'' (21mm), width of sides 5/16 (4mm) ? Ceramic Planting Rings For All Types Of Aquarium Plants that hold the plant in the floor of the aquarium We sell many aquatic products online, check out our Store! Terms and Conditions. We use approved methods for accepting payments. Sales Tax will be added to all shipments to New Jersey and based regulations. We always try to combine purchases, please contact us directly for a personal service. You will be notified on the day that your goods have been dispatched via e-mail with tracking which is used on all purchases. Please note that if there are any problems, contact us first via e-mail giving full details of any problem along with your user ID. We use USPS and UPS as our chosen carriers shipments to Hawaii, Alaska Puerto Rico may incur surcharges, contact will be made to advise before shipment at which point the order can be cancelled if desired. Orders placed on Saturday/Sunday Public Holidays will be processed next working day. We pride ourselves on excellent feedback, if any part of the buying experience is not to your satisfaction, please contact us to rectify before leaving feedback. By committing to buy you are agreeing to the Terms Conditions stated above.